Report - sample.exe

Azorult .NET framework AsyncRAT backdoor
ScreenShot
Created 2021.04.07 17:36 Machine s1_win7_x6401
Filename sample.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
5
Behavior Score
6.2
ZERO API file : malware
VT API (file) 53 detected (malicious, high confidence, GenericKD, Kryptik, FCSO, Unsafe, TrojanPSW, confidence, PHFF, Attribute, HighConfidence, MalwareX, Agensla, ipitiq, Gencirc, Malware@#19dap3tcldldr, Siggen2, MALREP, THCOGBA, Static AI, Malicious PE, AGEN, ai score=99, PSWTroj, kcloud, score, ZemsilF, 4m0@a4inFSoi, RedLine, TScope, CLOUD, MPLiEgM76KM, GdSda, HgIASQUA)
md5 7f8a15aca0965d3ef7f5e36245ee20fa
sha256 4fc6b82cb39e7ba08b5c9d519bf11111e76d3313f0e2bd93c3b67d15b155c2e7
ssdeep 24576:ptqmRTTqKdijAEoZHeMg1cHZq9rgAuvJ:ptAwxZzCSZMrL
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (13cnts)

Level Description
danger File has been identified by 53 AntiVirus engines on VirusTotal as malicious
watch A process attempted to delay the analysis task.
watch Attempts to remove evidence of file being downloaded from the Internet
watch Looks for the Windows Idle Time to determine the uptime
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks adapter addresses which can be used to detect virtual network interfaces
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice The binary likely contains encrypted or compressed data indicative of a packer
info Checks amount of memory in system
info Checks if process is being debugged by a debugger

Rules (7cnts)

Level Name Description Collection
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature Zero binaries (upload)
info IsNET_EXE (no description) binaries (upload)
info IsPacked Entropy Check binaries (upload)
info IsWindowsGUI (no description) binaries (upload)
info Win32_Trojan_PWS_Azorult_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (3cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
https://www.bing.com/ US MICROSOFT-CORP-MSN-AS-BLOCK 204.79.197.200 clean
www.google.com US GOOGLE 216.58.220.132 clean
142.250.66.36 US GOOGLE 142.250.66.36 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