MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fcbef5bd7744067ef7c50d725d0f1597de4ec83dbf900ad08c4df107e10a1096. 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
| SHA256 hash: | fcbef5bd7744067ef7c50d725d0f1597de4ec83dbf900ad08c4df107e10a1096 |
|---|---|
| SHA3-384 hash: | ded1c9a0fd493717aa50e72259dc7ec8e07b78a38196967d753147eed51e38face1e3104d10c5c23823fe76f3c87daaf |
| SHA1 hash: | cd6156925d1f1699aba2a2f5c77c3d8ae08d3431 |
| MD5 hash: | f687e78a3d27b7b18b5c728e05b4c83a |
| humanhash: | failed-nitrogen-mockingbird-harry |
| File name: | Yakonan.vbs |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 23'345 bytes |
| First seen: | 2026-05-21 05:50:44 UTC |
| Last seen: | 2026-05-26 20:18:18 UTC |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 384:9M9l+m3wlSDCawuPFfickW3dMwEbc+bjknu5xhoh0u1twh6:9M9JxDnw0H3dDEbc+XknCEji6 |
| TLSH | T1B1A2B6909AC20E61694B06FDACC43930763CCBFA113609E8F6547215E44EAB47F6EF9D |
| Magika | vba |
| Reporter |  threatcat_ch |
| Tags: | RemcosRAT vbs |
Intelligence
File Origin
# of uploads :
5
# of downloads :
88
Origin country :
CHVendor Threat Intelligence
No detections
Detection:
n/a
Verdict:
Malicious
Score:
92.5%
Tags:
obfuscate xtreme sage
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm fingerprint
Verdict:
Suspicious
Labled as:
VBS/Agent.CTX
Verdict:
Malicious
File Type:
vbs
First seen:
2026-05-20T23:38:00Z UTC
Last seen:
2026-05-23T04:29:00Z UTC
Hits:
~10000
Detections:
HEUR:Trojan.VBS.SAgent.gen HEUR:Trojan.Script.Generic Trojan.JS.SAgent.sb
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Obfuscated command line found
Potential evasive VBS script found (sleep loop)
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Uses ping.exe to check the status of other devices and networks
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Behaviour
Behavior Graph:
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Gathering data
Verdict:
Malicious
Threat:
Family.REMCOS
Threat name:
Script-WScript.Backdoor.Remcos
Status:
Malicious
First seen:
2026-05-21 03:05:32 UTC
File Type:
Text (VBS)
AV detection:
11 of 24 (45.83%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:remotehost collection discovery persistence privilege_escalation rat
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Enumerates physical storage devices
Event Triggered Execution: Installer Packages
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses Microsoft Outlook profiles
Contacts third-party web service commonly abused for C2
Checks computer location settings
Use of msiexec (install) with remote resource
Badlisted process makes network request
Family: Remcos
Malware Config
C2 Extraction:
102.220.160.21:2404
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: | detect_tiny_vbs |
|---|---|
| Author: | daniyyell |
| Description: | Detects tiny VBS delivery technique |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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