Report - SystemUpdate.exe

PWS .NET framework RAT Generic Malware Confuser .NET Antivirus UPX Malicious Library Malicious Packer .NET EXE PE32 PE File OS Processor Check PE64
ScreenShot
Created 2023.04.04 17:28 Machine s1_win7_x6401
Filename SystemUpdate.exe
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
6
Behavior Score
12.0
ZERO API file : malware
VT API (file) 52 detected (AIDetectNet, Evader, malicious, high confidence, Lazy, YakbeexMSIL, Artemis, unsafe, Save, CrimsonRAT, confidence, 100%, ZemsilF, dm0@aCDig9h, Kryptik, Eldorado, Attribute, HighConfidence, score, TrojanX, Bdhl, AGEN, MinerNET, R002C0DCV23, ILAgent, Static AI, Malicious PE, MBAT, Detected, ai score=85, GdSda, CLOUD, susgen)
md5 09a29f3b529c5e9ab25a47973bb0900a
sha256 33035a718f5445742b82707f0ba6aff80337cac1e89b6b3b8b51177c7f9f578a
ssdeep 1536:s2JbaiIZApuLzOgkx9MbEze4g3ViceSITKdU:dbahZApuL1kx9MbEze4g3ViceYO
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (27cnts)

Level Description
danger File has been identified by 52 AntiVirus engines on VirusTotal as malicious
watch A process attempted to delay the analysis task.
watch Created a service where a service was also not started
watch Detects Virtual Machines through their custom firmware
watch Installs itself for autorun at Windows startup
watch Looks for the Windows Idle Time to determine the uptime
watch One or more of the buffers contains an embedded PE file
watch The process powershell.exe wrote an executable file to disk
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 shortcut to an executable file
notice Creates a suspicious process
notice Creates executable files on the filesystem
notice Creates hidden or system file
notice Drops a binary and executes it
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 Terminates another process
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 Command line console output was observed
info Queries for the computername
info Uses Windows APIs to generate a cryptographic key

Rules (18cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (download)
warning Generic_Malware_Zero Generic Malware binaries (upload)
watch Antivirus Contains references to security software binaries (download)
watch ConfuserEx_Zero Confuser .NET binaries (upload)
watch Malicious_Library_Zero Malicious_Library binaries (download)
watch Malicious_Packer_Zero Malicious Packer binaries (download)
watch UPX_Zero UPX packed file 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 IsPE32 (no description) binaries (download)
info IsPE32 (no description) binaries (upload)
info IsPE64 (no description) binaries (download)
info OS_Processor_Check_Zero OS Processor Check binaries (download)
info PE_Header_Zero PE File Signature binaries (download)
info PE_Header_Zero PE File Signature binaries (upload)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (11cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
https://bitbucket.org/rpoverka/zhopa/downloads/xmrig.exe US ATLASSIAN PTY LTD 104.192.141.1 27006 clean
https://bbuseruploads.s3.amazonaws.com/92650141-3771-4ef6-8487-a8ce5ad2e240/downloads/b3a0e12f-e350-4a5c-8239-1cb38b0ef068/xmrig.exe?response-content-disposition=attachment%3B%20filename%3D%22xmrig.exe%22&AWSAccessKeyId=ASIA6KOSE3BNLA7LD4BL&Signature=g4wJ US AMAZON-02 52.216.140.148 clean
https://bitbucket.org/rpoverka/zhopa/downloads/Task24Watch.exe US ATLASSIAN PTY LTD 104.192.141.1 27005 clean
https://bbuseruploads.s3.amazonaws.com/92650141-3771-4ef6-8487-a8ce5ad2e240/downloads/03f126aa-6017-4520-92a2-c8112a6addd7/Task24Watch.exe?response-content-disposition=attachment%3B%20filename%3D%22Task24Watch.exe%22&AWSAccessKeyId=ASIA6KOSE3BNP45LSYXJ&Si US AMAZON-02 52.217.50.36 clean
xmr-eu2.nanopool.org FR OVH SAS 92.222.217.165 mailcious
bbuseruploads.s3.amazonaws.com US AMAZON-AES 3.5.3.112 malware
bitbucket.org US ATLASSIAN PTY LTD 104.192.141.1 malware
52.216.140.148 US AMAZON-02 52.216.140.148 malware
52.217.50.36 US AMAZON-02 52.217.50.36 clean
152.228.216.245 US ILIGHT-NET 152.228.216.245 clean
104.192.141.1 US ATLASSIAN PTY LTD 104.192.141.1 mailcious

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