MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 af624a6f2bfceaacff6bc589279529b37b280287d4230e5d46c6f07aa03b8af8. 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: 14


Intelligence 14 IOCs YARA 1 File information Comments

SHA256 hash: af624a6f2bfceaacff6bc589279529b37b280287d4230e5d46c6f07aa03b8af8
SHA3-384 hash: 36815120dd5cb6a239d30bd4c5a7cc8af1f0e2a4bfad8b679b60aeaa016cd9ffb568c2bcd369bb41eaf46e0fb81910cf
SHA1 hash: b9da134fb8b5f96e1dcbf492f5a262bee73e254c
MD5 hash: 5540f8ce0531b155fb89e4500d0656f6
humanhash: lima-virginia-king-twenty
File name:PO-056979-Supply-025-LINC.js
Download: download sample
Signature RemcosRAT
File size:387'123 bytes
First seen:2025-12-10 05:07:01 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:82A6xro4KDWe5g8Bcmc02mf/TfiDZP4yLSiLB9WDUtIME62QoEE5iUXyFOEEgzrF:r4D9nBq0f2X9WgKU2Xyg04w
TLSH T156844B20EE3406790F471BADFD990B62CAFD8609462650F1F6DE070E61065ECE3FE669
Magika javascript
Reporter abuse_ch
Tags:GuLoader js RAT RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
177
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
81.4%
Tags:
infosteal dropper spawn hype
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 cmd explorer lolbin obfuscated persistence powershell repaired
Verdict:
Malicious
File Type:
js
First seen:
2025-12-10T01:01:00Z UTC
Last seen:
2025-12-12T02:56:00Z UTC
Hits:
~1000
Detections:
HEUR:Trojan.Script.Generic HEUR:Trojan.Script.Agent.gen Trojan.PowerShell.Strion.sb PDM:Trojan.Win32.Generic Backdoor.Androm.HTTP.Download Trojan.JS.SAgent.sb VHO:Trojan.Script.SAgent.gen
Result
Threat name:
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Remcos RAT
Early bird code injection technique detected
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Hides threads from debuggers
Injects code into the Windows Explorer (explorer.exe)
JavaScript file contains suspicious strings
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queues an APC in another process (thread injection)
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected Powershell decode and execute
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1829984 Sample: PO-056979-Supply-025-LINC.js Startdate: 10/12/2025 Architecture: WINDOWS Score: 100 65 Suricata IDS alerts for network traffic 2->65 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 12 other signatures 2->71 8 powershell.exe 34 2->8         started        11 explorer.exe 2->11         started        13 wscript.exe 1 3 2->13         started        process3 signatures4 73 Early bird code injection technique detected 8->73 75 Writes to foreign memory regions 8->75 77 Found suspicious powershell code related to unpacking or dynamic code loading 8->77 85 5 other signatures 8->85 15 msiexec.exe 4 9 8->15         started        19 msiexec.exe 8->19         started        21 conhost.exe 8->21         started        23 cmd.exe 1 11->23         started        79 JScript performs obfuscated calls to suspicious functions 13->79 81 Injects code into the Windows Explorer (explorer.exe) 13->81 83 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->83 25 explorer.exe 1 13->25         started        process5 file6 43 C:\Users\user\AppData\Local\Temp\THAB80.tmp, MS-DOS 15->43 dropped 45 C:\Users\user\AppData\Local\Temp\THAB50.tmp, MS-DOS 15->45 dropped 47 C:\Users\user\AppData\Local\Temp\THAB30.tmp, MS-DOS 15->47 dropped 51 Detected Remcos RAT 15->51 53 Writes to foreign memory regions 15->53 55 Maps a DLL or memory area into another process 15->55 57 Hides threads from debuggers 15->57 27 RmClient.exe 2 15->27         started        30 RmClient.exe 1 15->30         started        32 RmClient.exe 1 15->32         started        39 2 other processes 15->39 59 Found hidden mapped module (file has been removed from disk) 19->59 61 Unusual module load detection (module proxying) 19->61 63 Switches to a custom stack to bypass stack traces 19->63 34 powershell.exe 14 32 23->34         started        37 conhost.exe 1 23->37         started        signatures7 process8 dnsIp9 87 Tries to steal Mail credentials (via file registry) 27->87 89 Tries to harvest and steal browser information (history, passwords, etc) 27->89 91 Unusual module load detection (module proxying) 27->91 93 Tries to steal Instant Messenger accounts or passwords 30->93 95 Tries to steal Mail credentials (via file / registry access) 30->95 49 163.5.63.96, 2100, 49716, 49724 EPITECHFR France 34->49 97 Found suspicious powershell code related to unpacking or dynamic code loading 34->97 99 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 34->99 101 Loading BitLocker PowerShell Module 34->101 41 conhost.exe 34->41         started        signatures10 process11
Verdict:
inconclusive
YARA:
3 match(es)
Threat name:
Script-JS.Trojan.Sonbokli
Status:
Malicious
First seen:
2025-12-10 04:58:55 UTC
File Type:
Text
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery execution rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
Badlisted process makes network request
Detected Nirsoft tools
NirSoft MailPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
163.5.63.96:2100
163.5.63.96:21000
163.5.63.96:27000
163.5.63.96:2700
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