MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ab223a4ed0eaced6dc3a2cc74953a453770bb030336f349cd37f2ef24b65c30. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



RemcosRAT


Vendor detections: 10


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: 4ab223a4ed0eaced6dc3a2cc74953a453770bb030336f349cd37f2ef24b65c30
SHA3-384 hash: d15687a85c4fede6f016be88dedeb090489604421cfe1e2a358c6ca24734d8eac338c65638b935252df954d8f2cabc08
SHA1 hash: bdfa3e314195f23437a420782b4912e60a685a96
MD5 hash: 9f31e7ec269ef7f755b7bd75e0579b18
humanhash: texas-hot-kentucky-bluebird
File name:sostener.vbs
Download: download sample
Signature RemcosRAT
File size:2'953'784 bytes
First seen:2024-08-26 04:54:30 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 192:8rkrkrErErErErErkrkrErErErErErkrkrErErErErErkrkrErErErErErkrkrE1:2WPE09IvR4
TLSH T14BD5A35282FE904AE9F79F9869F13130CE367E6A5C78AC2D125195988CACC04DDB1F73
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika mp3
Reporter lontze7
Tags:remcos RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
124
Origin country :
FR FR
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Tags:
Encryption Execution Network Stealth
Result
Verdict:
MALICIOUS
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Uses dynamic DNS services
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Generic Downloader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1498856 Sample: sostener.vbs Startdate: 26/08/2024 Architecture: WINDOWS Score: 100 28 pastebin.com 2->28 30 paste.ee 2->30 32 6 other IPs or domains 2->32 48 Multi AV Scanner detection for domain / URL 2->48 50 Suricata IDS alerts for network traffic 2->50 52 Found malware configuration 2->52 56 16 other signatures 2->56 9 wscript.exe 1 2->9         started        signatures3 54 Connects to a pastebin service (likely for C&C) 30->54 process4 signatures5 66 VBScript performs obfuscated calls to suspicious functions 9->66 68 Suspicious powershell command line found 9->68 70 Wscript starts Powershell (via cmd or directly) 9->70 72 2 other signatures 9->72 12 powershell.exe 7 9->12         started        process6 signatures7 74 Suspicious powershell command line found 12->74 76 Found suspicious powershell code related to unpacking or dynamic code loading 12->76 15 powershell.exe 14 15 12->15         started        19 conhost.exe 12->19         started        process8 dnsIp9 38 pastebin.com 104.20.3.235, 443, 49704, 49705 CLOUDFLARENETUS United States 15->38 40 paste.ee 188.114.96.3, 443, 49710 CLOUDFLARENETUS European Union 15->40 42 2 other IPs or domains 15->42 44 Writes to foreign memory regions 15->44 46 Injects a PE file into a foreign processes 15->46 21 RegSvcs.exe 3 15 15->21         started        signatures10 process11 dnsIp12 34 newssssssssssssss.duckdns.org 152.202.226.171, 2404, 49711 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 21->34 36 geoplugin.net 178.237.33.50, 49712, 80 ATOM86-ASATOM86NL Netherlands 21->36 26 C:\ProgramData\remcos\registros.dat, data 21->26 dropped 58 Contains functionality to bypass UAC (CMSTPLUA) 21->58 60 Detected Remcos RAT 21->60 62 Contains functionalty to change the wallpaper 21->62 64 5 other signatures 21->64 file13 signatures14
Threat name:
Script-WScript.Trojan.Honolulu
Status:
Malicious
First seen:
2024-08-26 04:55:06 UTC
File Type:
Text (VBS)
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:matrix fenix* discovery execution rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Command and Scripting Interpreter: PowerShell
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Blocklisted process makes network request
Remcos
Malware Config
C2 Extraction:
newssssssssssssss.duckdns.org:2404
Dropper Extraction:
http://pastebin.com/raw/V9y5Q5vv
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments