Report - clr.exe

NPKI Generic Malware UPX Malicious Library Malicious Packer PE File PE64
ScreenShot
Created 2021.09.07 11:57 Machine s1_win7_x6402
Filename clr.exe
Type PE32+ executable (GUI) x86-64 (stripped to external PDB), for MS Windows
AI Score
5
Behavior Score
2.6
ZERO API file : clean
VT API (file) 28 detected (malicious, high confidence, GenericKD, a variant of WinGo, GoCLR, Bulz, tetrmn, PowerShell, Drixed, gzxxe, Redcap, ezysi, ai score=83, Sabsik, score, Artemis, WinGo, HackTool, CLASSIC, Static AI, Suspicious PE, confidence)
md5 be8b9976bbf090bc23facc50a90273d6
sha256 3f4af8c0a06563d9f4d959d5065c02b83140c0fea19924dbd39984087ace54f8
ssdeep 49152:dHeOrbrb/TkvO90dL3BmAFd4A64nsfJZgP5MoFom9UwLS3pcOxF7Vooi6gwciPiy:dHJBgSmAQQQQQQQQQQQQQ
imphash c7269d59926fa4252270f407e4dab043
impfuzzy 24:UbVjhN5O+VuT2oLtXOr6kwmDruMztxdEr6tP:K5O+VAXOmGx0oP
  Network IP location

Signature (5cnts)

Level Description
warning File has been identified by 28 AntiVirus engines on VirusTotal as malicious
watch Communicates with host for which no DNS query was performed
watch Detects the presence of Wine emulator
notice Allocates read-write-execute memory (usually to unpack itself)
info The executable contains unknown PE section names indicative of a packer (could be a false positive)

Rules (7cnts)

Level Name Description Collection
danger NPKI_Zero File included NPKI 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 (4cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
172.67.186.79 US CLOUDFLARENET 172.67.186.79 malware
3.232.36.43 US AMAZON-AES 3.232.36.43 clean
104.21.65.45 US CLOUDFLARENET 104.21.65.45 malware
104.192.141.1 US ATLASSIAN PTY LTD 104.192.141.1 mailcious

Suricata ids

PE API

IAT(Import Address Table) Library

kernel32.dll
 0x9aa020 WriteFile
 0x9aa028 WriteConsoleW
 0x9aa030 WaitForMultipleObjects
 0x9aa038 WaitForSingleObject
 0x9aa040 VirtualQuery
 0x9aa048 VirtualFree
 0x9aa050 VirtualAlloc
 0x9aa058 SwitchToThread
 0x9aa060 SuspendThread
 0x9aa068 Sleep
 0x9aa070 SetWaitableTimer
 0x9aa078 SetUnhandledExceptionFilter
 0x9aa080 SetProcessPriorityBoost
 0x9aa088 SetEvent
 0x9aa090 SetErrorMode
 0x9aa098 SetConsoleCtrlHandler
 0x9aa0a0 ResumeThread
 0x9aa0a8 PostQueuedCompletionStatus
 0x9aa0b0 LoadLibraryA
 0x9aa0b8 LoadLibraryW
 0x9aa0c0 SetThreadContext
 0x9aa0c8 GetThreadContext
 0x9aa0d0 GetSystemInfo
 0x9aa0d8 GetSystemDirectoryA
 0x9aa0e0 GetStdHandle
 0x9aa0e8 GetQueuedCompletionStatusEx
 0x9aa0f0 GetProcessAffinityMask
 0x9aa0f8 GetProcAddress
 0x9aa100 GetEnvironmentStringsW
 0x9aa108 GetConsoleMode
 0x9aa110 FreeEnvironmentStringsW
 0x9aa118 ExitProcess
 0x9aa120 DuplicateHandle
 0x9aa128 CreateWaitableTimerExW
 0x9aa130 CreateThread
 0x9aa138 CreateIoCompletionPort
 0x9aa140 CreateFileA
 0x9aa148 CreateEventA
 0x9aa150 CloseHandle
 0x9aa158 AddVectoredExceptionHandler

EAT(Export Address Table) is none



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