Report - www.txt

AsyncRAT backdoor
ScreenShot
Created 2021.03.17 23:13 Machine s1_win7_x6402
Filename www.txt
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
3
Behavior Score
4.8
ZERO API file : malware
VT API (file) 26 detected (malicious, high confidence, PackedNET, Kryptik, FCWL, Unsafe, Eldorado, AGEN, Static AI, Malicious PE, ai score=89, score, GenKryptik, FBDN, CLOUD, InvalidSig)
md5 8fc65757011f067d0f35d6d4655e75d1
sha256 3b63323d965a34d9a828593150e9c765b085eb844c8c1596a86def9b623e099e
ssdeep 24576:2E74gY2/72/H/B7/qBonrQnOBbjuD5Ofwm8F/BraAMpVKWiQTbXl3RDpgSK7Cf/W:
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (10cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 26 AntiVirus engines on VirusTotal as malicious
watch Allocates execute permission to another process indicative of possible code injection
watch Manipulates memory of a non-child process indicative of process injection
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 Terminates another process
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info Uses Windows APIs to generate a cryptographic key

Rules (7cnts)

Level Name Description Collection
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature Zero binaries (upload)
info HasDigitalSignature DigitalSignature Check binaries (upload)
info HasOverlay Overlay Check binaries (upload)
info IsNET_EXE (no description) binaries (upload)
info IsWindowsGUI (no description) binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (1cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://192.168.56.103:5357/da8ea474-550f-433d-b444-54d2081d1d24/ Unknown 192.168.56.103 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