Report - b4cfc49d647ebeffb99579dbd4be2a4ca779e3d36b60656aaa9d616ac343e991

CobaltStrike Generic Malware Malicious Packer UPX Malicious Library PE File PE64
ScreenShot
Created 2021.08.13 10:19 Machine s1_win7_x6401
Filename b4cfc49d647ebeffb99579dbd4be2a4ca779e3d36b60656aaa9d616ac343e991
Type PE32+ executable (GUI) x86-64 (stripped to external PDB), for MS Windows
AI Score
5
Behavior Score
2.0
ZERO API file : clean
VT API (file) 19 detected (Shelma, Malicious, FileRepMetagen, UMal, ziapx@0, Artemis, Outbreak, PatchedWinSwrort, njyhr, kcloud, Sabsik, score, susgen)
md5 b594afc619b7f19b04c125b093ddb099
sha256 b4cfc49d647ebeffb99579dbd4be2a4ca779e3d36b60656aaa9d616ac343e991
ssdeep 24576:lR5N5YQjiT5MEiIoSFfxnqq+/BIBRo/OWhUpH/f0HLa8q16:dH1jMJiIoMJnqq+/BIztx8He8q1
imphash 4035d2883e01d64f3e7a9dccb1d63af5
impfuzzy 24:UbVjhN5O+VuT2oLtXOr6kwmDruMztxdEr6UP:K5O+VAXOmGx0nP
  Network IP location

Signature (5cnts)

Level Description
watch Detects the presence of Wine emulator
watch File has been identified by 19 AntiVirus engines on VirusTotal as malicious
notice Allocates read-write-execute memory (usually to unpack itself)
info One or more processes crashed
info The executable contains unknown PE section names indicative of a packer (could be a false positive)

Rules (7cnts)

Level Name Description Collection
danger CobaltStrike_IN CobaltStrike binaries (upload)
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Malicious_Library_Zero Malicious_Library binaries (upload)
watch Malicious_Packer_Zero Malicious Packer binaries (upload)
watch UPX_Zero UPX packed file binaries (upload)
info IsPE64 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)

Network (0cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?

Suricata ids

PE API

IAT(Import Address Table) Library

kernel32.dll
 0x63d020 WriteFile
 0x63d028 WriteConsoleW
 0x63d030 WaitForMultipleObjects
 0x63d038 WaitForSingleObject
 0x63d040 VirtualQuery
 0x63d048 VirtualFree
 0x63d050 VirtualAlloc
 0x63d058 SwitchToThread
 0x63d060 SuspendThread
 0x63d068 Sleep
 0x63d070 SetWaitableTimer
 0x63d078 SetUnhandledExceptionFilter
 0x63d080 SetProcessPriorityBoost
 0x63d088 SetEvent
 0x63d090 SetErrorMode
 0x63d098 SetConsoleCtrlHandler
 0x63d0a0 ResumeThread
 0x63d0a8 PostQueuedCompletionStatus
 0x63d0b0 LoadLibraryA
 0x63d0b8 LoadLibraryW
 0x63d0c0 SetThreadContext
 0x63d0c8 GetThreadContext
 0x63d0d0 GetSystemInfo
 0x63d0d8 GetSystemDirectoryA
 0x63d0e0 GetStdHandle
 0x63d0e8 GetQueuedCompletionStatusEx
 0x63d0f0 GetProcessAffinityMask
 0x63d0f8 GetProcAddress
 0x63d100 GetEnvironmentStringsW
 0x63d108 GetConsoleMode
 0x63d110 FreeEnvironmentStringsW
 0x63d118 ExitProcess
 0x63d120 DuplicateHandle
 0x63d128 CreateWaitableTimerExW
 0x63d130 CreateThread
 0x63d138 CreateIoCompletionPort
 0x63d140 CreateEventA
 0x63d148 CloseHandle
 0x63d150 AddVectoredExceptionHandler

EAT(Export Address Table) is none



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