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Guide 2020-06-10
Version history 2020-06-10

Summary | ZeroBOX

berrashok2.1.exe

NSIS UPX Malicious Library PE File DLL OS Processor Check PE32

Category	Machine	Started	Completed
FILE	s1_win7_x6401	July 7, 2023, 7:29 a.m.	July 7, 2023, 7:31 a.m.

Size	370.2KB
Type	PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
MD5	`64273b56a78b2ba729ca0d023f06b51b`
SHA256	`677d8f0356d1a1afde7e90e35a132cc47eb2c1568648c1c90c237921df11a15a`
CRC32	`E0DDD137`
ssdeep	`6144:AYa6+F0rM1jS2lyhCCTPvpL8ZfHZx1gBN4kvqxRAHfOEZ78Y+I:AYEF0rWjP+C8p45DaN4kxTCI`
Yara	UPX_Zero - UPX packed file NSIS_Installer - Null Soft Installer Malicious_Library_Zero - Malicious_Library PE_Header_Zero - PE File Signature IsPE32 - (no description)

berrashok2.1.exe "C:\Users\test22\AppData\Local\Temp\berrashok2.1.exe"
2556
- berrashok2.1.exe "C:\Users\test22\AppData\Local\Temp\berrashok2.1.exe"
  2668

Name	Response	Post-Analysis Lookup
www.weighing.xyz
www.stockprob.com	A 50.117.107.194	50.117.107.194
www.dbszdjh.fun	A 198.54.117.218 A 198.54.117.216 A 198.54.117.217 CNAME parkingpage.namecheap.com A 198.54.117.215 A 198.54.117.212 A 198.54.117.210 A 198.54.117.211	198.54.117.218
www.zakhtive.com

IP Address	Status	Action
164.124.101.2	Active	Moloch
198.54.117.215	Active	Moloch
50.117.107.194	Active	Moloch

Suricata Alerts

Flow	SID	Signature	Category
TCP 192.168.56.101:49166 -> 50.117.107.194:80	2031412	ET MALWARE FormBook CnC Checkin (GET)	Malware Command and Control Activity Detected
TCP 192.168.56.101:49166 -> 50.117.107.194:80	2031449	ET MALWARE FormBook CnC Checkin (GET)	Malware Command and Control Activity Detected
TCP 192.168.56.101:49166 -> 50.117.107.194:80	2031453	ET MALWARE FormBook CnC Checkin (GET)	Malware Command and Control Activity Detected
TCP 192.168.56.101:49165 -> 198.54.117.215:80	2031412	ET MALWARE FormBook CnC Checkin (GET)	Malware Command and Control Activity Detected
TCP 192.168.56.101:49165 -> 198.54.117.215:80	2031449	ET MALWARE FormBook CnC Checkin (GET)	Malware Command and Control Activity Detected
TCP 192.168.56.101:49165 -> 198.54.117.215:80	2031453	ET MALWARE FormBook CnC Checkin (GET)	Malware Command and Control Activity Detected

Suricata TLS

No Suricata TLS

Checks amount of memory in system, this can be used to detect virtual machines that have a low amount of memory available (1 event)

Time & API	Arguments	Status	Return	Repeated
GlobalMemoryStatusEx July 7, 2023, 7:29 a.m.		1	1	0

The executable contains unknown PE section names indicative of a packer (could be a false positive) (1 event)

section

.ndata

HTTP traffic contains suspicious features which may be indicative of malware related traffic (2 events)

suspicious_features	GET method with no useragent header				suspicious_request	GET http://www.dbszdjh.fun/sy18/?Jt7=U6JHPeuS9cFK+HdosiYdUe3kZUaaEpBIK0NQV+GndtDtxcA30TUEsLLFVDIA4mk86iP5n2oi&EHU40X=gbTpoNAPwL
suspicious_features	GET method with no useragent header				suspicious_request	GET http://www.stockprob.com/sy18/?Jt7=1Oep3nCFFUrkcIdAUTj14MBiu14AlEMKb8QIMK+sAITCpSEZyQitY4taH9PhDo7Kfu1SD1c1&EHU40X=gbTpoNAPwL

Performs some HTTP requests (2 events)

request	GET http://www.dbszdjh.fun/sy18/?Jt7=U6JHPeuS9cFK+HdosiYdUe3kZUaaEpBIK0NQV+GndtDtxcA30TUEsLLFVDIA4mk86iP5n2oi&EHU40X=gbTpoNAPwL
request	GET http://www.stockprob.com/sy18/?Jt7=1Oep3nCFFUrkcIdAUTj14MBiu14AlEMKb8QIMK+sAITCpSEZyQitY4taH9PhDo7Kfu1SD1c1&EHU40X=gbTpoNAPwL

Allocates read-write-execute memory (usually to unpack itself) (4 events)

Time & API	Arguments	Status	Return	Repeated
NtProtectVirtualMemory July 7, 2023, 7:29 a.m.	process_identifier: 2556 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x732a2000 process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory July 7, 2023, 7:29 a.m.	process_identifier: 2556 region_size: 8192 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x031c0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory July 7, 2023, 7:29 a.m.	process_identifier: 2556 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x031d0000 allocation_type: 12289 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory July 7, 2023, 7:29 a.m.	process_identifier: 2668 region_size: 3158016 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00920000 allocation_type: 12288 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0xffffffff	1	0	0

Creates executable files on the filesystem (1 event)

file	C:\Users\test22\AppData\Local\Temp\nsnF147.tmp\bksfhkzcc.dll

Drops an executable to the user AppData folder (1 event)

file	C:\Users\test22\AppData\Local\Temp\nsnF147.tmp\bksfhkzcc.dll

Checks for the Locally Unique Identifier on the system for a suspicious privilege (1 event)

Time & API	Arguments	Status	Return	Repeated
LookupPrivilegeValueW July 7, 2023, 7:29 a.m.	system_name: privilege_name: SeDebugPrivilege	1	1	0

Used NtSetContextThread to modify a thread in a remote process indicative of process injection (2 events)

Time & API	Arguments	Status	Return	Repeated
Process injection	Process 2556 called NtSetContextThread to modify thread in remote process 2668
NtSetContextThread July 7, 2023, 7:29 a.m.	registers.eip: 1995571652 registers.esp: 1638384 registers.edi: 0 registers.eax: 4321552 registers.ebp: 0 registers.edx: 0 registers.ebx: 2130567168 registers.esi: 0 registers.ecx: 0 thread_handle: 0x00000240 process_identifier: 2668	1	0	0