MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f36fa0d933bc573a7d37d5dfcf503fd6d47ee5294dbb2fcfc4f8c6bf4d67e152. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments

SHA256 hash: f36fa0d933bc573a7d37d5dfcf503fd6d47ee5294dbb2fcfc4f8c6bf4d67e152
SHA3-384 hash: bea3e72ffd88038b9f7c77e7d197e72ec171f768d2616ffd2288bfbe74e5d3a68182f4af9963a73dd6a58f5366084657
SHA1 hash: e824dcaf5da2c9241ddc336cede05e4c60ea115b
MD5 hash: ea0ad51d363b927e826a120fce06af75
humanhash: april-early-kentucky-tennis
File name:Invoice_301.vbs
Download: download sample
Signature RemcosRAT
File size:16'167 bytes
First seen:2025-11-08 16:50:46 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 384:XXeXzWx8tphfhc9AuVTnMZBM/7AoWSgmLBVNFkGDXX8MFKw6ML+wKmBZWwMpNrq0:WzBFCVjMZI7etABnFkGj8MFKw6MlKmBi
Threatray 4'074 similar samples on MalwareBazaar
TLSH T1FC72443A955CDFF00B3E21F415873E1560A09326A83ACD6CE8DA81547F2B7519FA78EC
Magika vba
Reporter abuse_ch
Tags:RemcosRAT vbs

Intelligence


File Origin
# of uploads :
1
# of downloads :
61
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
97.4%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 masquerade obfuscated obfuscated powershell
Verdict:
Malicious
File Type:
vbs
First seen:
2025-11-07T09:26:00Z UTC
Last seen:
2025-11-10T12:21:00Z UTC
Hits:
~100
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
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
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample has a suspicious name (potential lure to open the executable)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Powershell Decrypt And Execute Base64 Data
Sigma detected: Remcos
Sigma detected: Suspicious PowerShell IEX Execution Patterns
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
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 Powershell decode and execute
Yara detected Powershell download and execute
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1810639 Sample: Invoice_301.vbs Startdate: 08/11/2025 Architecture: WINDOWS Score: 100 31 nffjf.info 2->31 33 hom1.s3.cubbit.eu 2->33 35 2 other IPs or domains 2->35 59 Suricata IDS alerts for network traffic 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 13 other signatures 2->65 9 wscript.exe 1 2->9         started        signatures3 process4 signatures5 67 VBScript performs obfuscated calls to suspicious functions 9->67 69 Suspicious powershell command line found 9->69 71 Wscript starts Powershell (via cmd or directly) 9->71 73 2 other signatures 9->73 12 powershell.exe 14 17 9->12         started        process6 dnsIp7 41 hom1.s3.cubbit.eu 195.154.72.140, 443, 49720 OnlineSASFR France 12->41 43 nffjf.info 62.60.226.73, 443, 49717 ASLINE-AS-APASLINELIMITEDHK Iran (ISLAMIC Republic Of) 12->43 45 raw.githubusercontent.com 185.199.108.133, 443, 49716 FASTLYUS Netherlands 12->45 75 Writes to foreign memory regions 12->75 77 Suspicious execution chain found 12->77 79 Injects a PE file into a foreign processes 12->79 16 RegAsm.exe 12->16         started        19 RegAsm.exe 2 8 12->19         started        23 taskkill.exe 1 12->23         started        25 conhost.exe 12->25         started        signatures8 process9 dnsIp10 47 Contains functionalty to change the wallpaper 16->47 49 Contains functionality to steal Chrome passwords or cookies 16->49 51 Contains functionality to register a low level keyboard hook 16->51 57 2 other signatures 16->57 37 198.55.102.84, 1818, 49722 ASN-QUADRANET-GLOBALUS United States 19->37 39 geoplugin.net 178.237.33.50, 49724, 80 ATOM86-ASATOM86NL Netherlands 19->39 29 C:\ProgramData\remcos\logs.dat, data 19->29 dropped 53 Detected Remcos RAT 19->53 55 Installs a global keyboard hook 19->55 27 conhost.exe 23->27         started        file11 signatures12 process13
Gathering data
Threat name:
Script-WScript.Trojan.GuLoader
Status:
Malicious
First seen:
2025-11-07 15:38:19 UTC
File Type:
Text (VBS)
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery execution rat
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
Badlisted process makes network request
Remcos
Remcos family
Malware Config
C2 Extraction:
198.55.102.84:1818
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information


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

Comments