Report - ok.exe

AsyncRAT backdoor .NET EXE PE File PE32
ScreenShot
Created 2021.05.11 10:59 Machine s1_win7_x6401
Filename ok.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
6
Behavior Score
1.8
ZERO API file : malware
VT API (file) 36 detected (malicious, high confidence, Unsafe, Save, Kryptik, ali2000016, ZemsilF, vp0@auYp9Wh, Eldorado, Attribute, HighConfidence, AAVE, MalwareX, PowerShell, GenKryptik, CLOUD, Fsysna, ai score=99, kcloud, Wacatac, NK1H3E, score, Artemis, Static AI, Malicious PE, confidence)
md5 36b4b412a9eec8b3081ede463ec80d05
sha256 9f9b6c8f6e6bf6ccb07e8921c1c2a461e21663096bf0f233a07bb790975d5ee4
ssdeep 1536:ypvUfoLfPkrMhW2Am4qAgsZFcxA3rfIP2kp7XEi7kI6PFhT3sz2YRE3E02YmgwCY:u
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (4cnts)

Level Description
danger File has been identified by 36 AntiVirus engines on VirusTotal as malicious
notice Allocates read-write-execute memory (usually to unpack itself)
info Checks amount of memory in system
info Checks if process is being debugged by a debugger

Rules (4cnts)

Level Name Description Collection
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)
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