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Report - Wechatsextup.exe

RAT PWS .NET framework Generic Malware task schedule Antivirus Create Service DGA Socket DNS Internet API Code injection Sniff Audio HTTP KeyLogger FTP Escalate priviledges Downloader ScreenShot P2P Steal credential Http API AntiDebug AntiVM PE File PE32
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ScreenShot
Created 2021.11.30 11:33 Machine s1_win7_x6401
Filename Wechatsextup.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
10
 Behavior Score
12.2
ZERO API file : malware
VT API (file) 39 detected (malicious, high confidence, Siggen15, GenericKDZ, Agenttesla, Kryptik, Eldorado, ADOC, R002C0DKR21, Taskun, starter, ali1000139, PWSX, Fareit, R + Troj, Static AI, Suspicious PE, dnkba, kcloud, score, FDEJ, ai score=100, iXc7QdI6ASA, susgen, GdSda, confidence, 100%)
md5 6e65a0fcf114bb1e4eac17c66ba4cdc3
sha256 06d230cca12e200a7b7400e0a6a36fec7811a9d88fadb147fef454c953a23061
ssdeep 12288:iBzcmhiTek6HhWTQopA4FIGD3+p0YWKATE6W3UvbZyqw7cqoxdzYixBFmRqMsb/E:iBomhiSJWRpXFIG6jWKATE6WEvbgqw/m
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (26cnts)

Level Description
danger Executed a process and injected code into it
danger File has been identified by 39 AntiVirus engines on VirusTotal as malicious
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 Installs itself for autorun at Windows startup
watch Manipulates memory of a non-child process indicative of process injection
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 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 Drops a binary and executes it
notice Drops an executable to the user AppData folder
notice One or more potentially interesting buffers were extracted
notice The binary likely contains encrypted or compressed data indicative of a packer
notice Uses Windows utilities for basic Windows functionality
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 Command line console output was observed
info Queries for the computername
info Uses Windows APIs to generate a cryptographic key

Rules (44cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (download)
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Antivirus Contains references to security software binaries (download)
watch Network_Downloader File Downloader memory
watch schtasks_Zero task schedule memory
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (download)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
notice Code_injection Code injection with CreateRemoteThread in a remote process memory
notice Create_Service Create a windows service memory
notice Escalate_priviledges Escalate priviledges memory
notice KeyLogger Run a KeyLogger memory
notice local_credential_Steal Steal credential memory
notice Network_DGA Communication using DGA memory
notice Network_DNS Communications use DNS memory
notice Network_FTP Communications over FTP memory
notice Network_HTTP Communications over HTTP memory
notice Network_P2P_Win Communications over P2P network memory
notice Network_TCP_Socket Communications over RAW Socket memory
notice ScreenShot Take ScreenShot memory
notice Sniff_Audio Record Audio memory
notice Str_Win32_Http_API Match Windows Http API call memory
notice Str_Win32_Internet_API Match Windows Inet API call memory
info anti_dbg Checks if being debugged memory
info antisb_threatExpert Anti-Sandbox checks for ThreatExpert memory
info Check_Dlls (no description) memory
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerCheck__RemoteAPI (no description) memory
info DebuggerException__ConsoleCtrl (no description) memory
info DebuggerException__SetConsoleCtrl (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 (download)
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info win_hook Affect hook table memory
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (0cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?

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