Report - vbc.exe

Formbook Emotet PWS .NET framework RAT Generic Malware Antivirus AntiDebug AntiVM .NET EXE PE32 PE File
ScreenShot
Created 2023.04.22 08:51 Machine s1_win7_x6401
Filename vbc.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
5
Behavior Score
12.2
ZERO API file : malware
VT API (file) 24 detected (AIDetectNet, Noon, Artemis, unsafe, malicious, confidence, 100%, ZemsilF, qm0@aCeqWMj, moderate confidence, score, DropperX, Sabsik, Chgt, MSIL@AI, MSIL2, XO9V2A, MUIV2+lwo5gQ, susgen)
md5 c167a030f4e6252f380c5d177282cfbe
sha256 b4c98e5f455268459dbf8afce9997b4c4355ec30601dd290979a310773f0ed99
ssdeep 3072:bw2zOh1XA2eOECpKAGelMUdsQ0ffIE5FOiPihtzHju/D6X9zWvn7GPTLbw:bw2y2kppKAGTUdsQ0omdihtO/+NzWqL
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (26cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 24 AntiVirus engines on VirusTotal as malicious
watch A process attempted to delay the analysis task.
watch Allocates execute permission to another process indicative of possible code injection
watch Code injection by writing an executable or DLL to the memory of another process
watch Communicates with host for which no DNS query was performed
watch Looks for the Windows Idle Time to determine the uptime
watch Potential code injection by writing to the memory of another process
watch Resumed a suspended thread in a remote process potentially indicative of process injection
watch The process powershell.exe wrote an executable file to disk
watch Used NtSetContextThread to modify a thread in a remote process indicative of process injection
notice A process created a hidden window
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks adapter addresses which can be used to detect virtual network interfaces
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice Creates a shortcut to an executable file
notice Creates a suspicious process
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Yara rule detected in process memory
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info One or more processes crashed
info Queries for the computername
info Uses Windows APIs to generate a cryptographic key

Rules (17cnts)

Level Name Description Collection
danger Win32_Trojan_Emotet_2_Zero Win32 Trojan Emotet binaries (upload)
danger Win_Trojan_Formbook_m_Zero Used Formbook[m] memory
warning Generic_Malware_Zero Generic Malware binaries (download)
watch Antivirus Contains references to security software binaries (download)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
info anti_dbg Checks if being debugged memory
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerHiding__Active (no description) memory
info DebuggerHiding__Thread (no description) memory
info disable_dep Bypass DEP memory
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (11cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://www.hjd04b.com/my28/?8pgHjRdp=l6PR18TDP4lswArBVO5bAFPootK1SxL5gNddDcv8ESa3Cj6F17LLz9lgx0MVn3j38wYGOJcR&r6=X4XDHZU8s US CLOUDFLARENET 104.21.6.135 clean
http://www.eoujkbvn.shop/my28/?8pgHjRdp=L4acUB+47lynVF4fjl9p6Di64KDq5P2gzlJCkdZJaqemyNdaz3c4hs19zS7nZyQH6vk86Fkh&r6=X4XDHZU8s US CLOUDFLARENET 172.67.210.136 clean
http://172.245.214.178/007/Fetsok.dat US AS-COLOCROSSING 172.245.214.178 mailcious
http://www.49astleystreet.com/my28/?8pgHjRdp=+VAUe4t+xmaF92noBAsndN56+z0GlyZ4xiIxgvDciribSLdsxv7/Rp1zqOY349oGooJSGIY2&r6=X4XDHZU8s AU MICROSOFT-CORP-MSN-AS-BLOCK 52.147.15.202 28339 mailcious
www.eoujkbvn.shop US CLOUDFLARENET 104.21.61.129 mailcious
www.49astleystreet.com AU MICROSOFT-CORP-MSN-AS-BLOCK 52.147.15.202 mailcious
www.hjd04b.com US CLOUDFLARENET 172.67.154.224 clean
52.147.15.202 AU MICROSOFT-CORP-MSN-AS-BLOCK 52.147.15.202 mailcious
104.21.6.135 US CLOUDFLARENET 104.21.6.135 clean
104.21.61.129 US CLOUDFLARENET 104.21.61.129 clean
172.245.214.178 US AS-COLOCROSSING 172.245.214.178 phishing

Suricata ids

PE API

IAT(Import Address Table) Library

mscoree.dll
 0x402000 _CorExeMain

EAT(Export Address Table) is none



Similarity measure (PE file only) - Checking for service failure