Report - Stub.exe

RAT PWS .NET framework NPKI Gen2 Generic Malware Malicious Packer Malicious Library PE64 PE File OS Processor Check .NET EXE DLL
ScreenShot
Created 2021.09.19 10:49 Machine s1_win7_x6402
Filename Stub.exe
Type PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows
AI Score
5
Behavior Score
8.4
ZERO API file : malware
VT API (file) 36 detected (Bingoml, malicious, high confidence, GenericKD, YakbeexMSIL, Unsafe, TrojanX, Szvz, Artemis, Static AI, Malicious PE, optua, kcloud, Sabsik, 0BMFEX, score, ai score=88, Diztakun, susgen, confidence)
md5 5eaf5e0662c263dd7acc3476067991a2
sha256 a4c680999c96f7c43857ced1a7d4e3bb615e1fb776ca6a8b35d2b9d2d3ac1761
ssdeep 6144:1KZ4GtPKN/wERFgwwJnGGH6f6i6yNWusc0cOJfet3Agp0q9ygbX+1RzDU8:WtPKptwJGGaiSNWPc0cIsaMJcR/V
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (21cnts)

Level Description
danger File has been identified by 36 AntiVirus engines on VirusTotal as malicious
watch A process performed obfuscation on information about the computer or sent it to a remote location indicative of CnC Traffic/Preperations.
watch Drops a binary and executes it
watch Installs itself for autorun at Windows startup
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 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 Creates a suspicious process
notice Creates executable files on the filesystem
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice Performs some HTTP requests
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice Uses Windows utilities for basic Windows functionality
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info Collects information to fingerprint the system (MachineGuid
info Command line console output was observed
info Queries for the computername
info This executable has a PDB path

Rules (19cnts)

Level Name Description Collection
danger NPKI_Zero File included NPKI binaries (download)
warning Generic_Malware_Zero Generic Malware binaries (download)
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Malicious_Library_Zero Malicious_Library binaries (download)
watch Malicious_Packer_Zero Malicious Packer binaries (download)
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)
info Is_DotNET_EXE (no description) binaries (download)
info Is_DotNET_EXE (no description) binaries (upload)
info IsDLL (no description) binaries (download)
info IsPE64 (no description) binaries (download)
info IsPE64 (no description) binaries (upload)
info OS_Processor_Check_Zero OS Processor Check binaries (download)
info OS_Processor_Check_Zero OS Processor Check binaries (upload)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)
info Win32_Trojan_Gen_2_0904B0_Zero Win32 Trojan Gen binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (8cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://sherence.ru/323.exe US CLOUDFLARENET 104.21.48.37 5192 malware
https://sh1729062.b.had.su//loader.txt NL Zomro B.V. 92.119.113.140 4573 mailcious
https://sh1729062.b.had.su//cisCheckerstroke.php NL Zomro B.V. 92.119.113.140 4574 mailcious
https://sh1729062.b.had.su//gate.php?hwid=7C6024AD&os=6.1.7601&av= NL Zomro B.V. 92.119.113.140 4575 mailcious
sh1729062.b.had.su NL Zomro B.V. 92.119.113.140 mailcious
sherence.ru US CLOUDFLARENET 172.67.176.114 malware
172.67.176.114 US CLOUDFLARENET 172.67.176.114 malware
92.119.113.140 NL Zomro B.V. 92.119.113.140 malware

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