Report - rem.exe

AgentTesla NPKI PWS .NET framework RAT browser info stealer Generic Malware Google Chrome User Data Downloader UPX Antivirus Create Service Socket DNS PWS[m] Sniff Audio Internet API Escalate priviledges KeyLogger AntiDebug AntiVM OS Processor Check .NET
ScreenShot
Created 2023.04.12 13:31 Machine s1_win7_x6403
Filename rem.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score Not founds Behavior Score
13.0
ZERO API file : malware
VT API (file) 43 detected (Seraph, malicious, high confidence, Inject4, MSILZilla, Artemis, Vtrq, Kryptik, Eldorado, Attribute, HighConfidence, GenKryptik, GIIN, score, Mzfl, Remcos, gixta, high, Detected, ai score=87, unsafe, Chgt, R002H0DD923, CLOUD, Behavior)
md5 cb43cfa544d997cbbf5ca1d3e437fb92
sha256 0294cdf9c9c38ea1f2261b63206293516944cffef513e12701c3092a9244c0b7
ssdeep 49152:xoH566E2qvkjUPlrrQMEwNQ7uR+crlECdJxnXFcA/qDMOx5JJx6mNqNbHhBA8PNb:W3jUVP67uMcrSCVSLDMOxnJsFZOBs0
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (24cnts)

Level Description
danger Connects to IP addresses that are no longer responding to requests (legitimate services will remain up-and-running usually)
danger File has been identified by 43 AntiVirus engines on VirusTotal as malicious
danger Executed a process and injected code into it
warning Generates some ICMP traffic
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 Creates a windows hook that monitors keyboard input (keylogger)
watch Installs itself for autorun at Windows startup
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 Used NtSetContextThread to modify a thread in a remote process indicative of process injection
notice A process attempted to delay the analysis task.
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 One or more potentially interesting buffers were extracted
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 (32cnts)

Level Name Description Collection
danger NPKI_Zero File included NPKI binaries (upload)
warning Generic_Malware_Zero Generic Malware binaries (download)
warning infoStealer_browser_Zero browser info stealer memory
watch Antivirus Contains references to security software binaries (download)
watch Chrome_User_Data_Check_Zero Google Chrome User Data Check memory
watch Network_Downloader File Downloader memory
watch UPX_Zero UPX packed file binaries (upload)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
notice Create_Service Create a windows service memory
notice Escalate_priviledges Escalate priviledges memory
notice Generic_PWS_Memory_Zero PWS Memory memory
notice KeyLogger Run a KeyLogger memory
notice Network_DNS Communications use DNS memory
notice Network_TCP_Socket Communications over RAW Socket memory
notice Sniff_Audio Record Audio memory
notice Str_Win32_Internet_API Match Windows Inet API call memory
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 OS_Processor_Check_Zero OS Processor Check binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)
info PowerShell PowerShell script scripts
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 (upload)
info Win_Trojan_agentTesla_Zero Win.Trojan.agentTesla memory

Network (5cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
marcapinyo.ug Unknown 37.0.14.204 clean
petronian.ac.ug Unknown 37.0.14.204 clean
platitinas.ac.ug Unknown clean
masontralacs.ug Unknown clean
37.0.14.204 Unknown 37.0.14.204 clean

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