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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9caf23dfe09762c4e1d0f1a92c2791ec576665a2c40fb897b78e4e2a458d4f45. 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: 8


Intelligence 8 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9caf23dfe09762c4e1d0f1a92c2791ec576665a2c40fb897b78e4e2a458d4f45
SHA3-384 hash: d508ab4033dd9ee276d527dec93406f12fc95a440a68dfae0416a202be2221595bcee84dc689b058b2e24bb792f5771f
SHA1 hash: 1d8476560682196513095770f090c7b040bd6753
MD5 hash: 02210deac703893bf2fcbf98c751b10f
humanhash: california-carbon-batman-november
File name:DOCUMENTS_2132535300.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'295'282 bytes
First seen:2026-10-08 07:45:00 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:application/javascript
ssdeep 1536:i9vX+VT94rt3R3ukMEJzoBWk++h4uSl/Ic0PV6H4whPEzq/C5ZgMgK9GUNbrNSWq:PlaB3jJEBV++USUwBKlKwljvYcL
TLSH T19F555A5203451BBDF68D0EC9C95B245B20F2D8677D251298EFB36EE7BC3B984943063A
Magika javascript
Reporter lowmal3
Tags:js RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
182
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Trojan.Script.26056.27766.UNOFFICIAL
Create hunting rule

Gathering data
Verdict:
Malicious
Labled as:
SVM:TrojanDownloader/JS.MalBehav.gen
Link:
https://www.hybrid-analysis.com/sample/9caf23dfe09762c4e1d0f1a92c2791ec576665a2c40fb897b78e4e2a458d4f45
Verdict:
Malicious
File Type:
js
First seen:
2026-10-08T02:50:00Z UTC
Last seen:
2026-10-10T05:36:00Z UTC
Hits:
~10000
Link:
https://opentip.kaspersky.com/9caf23dfe09762c4e1d0f1a92c2791ec576665a2c40fb897b78e4e2a458d4f45/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1983990
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Internet Explorer form passwords
Contains functionalty to change the wallpaper
Creates processes via WMI
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
JavaScript source code contains functionality to generate code involving a shell, file or stream
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Suspicious execution chain found
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript called in batch mode (surpress errors)
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1983990 Sample: DOCUMENTS_2132535300.js Startdate: 08/10/2026 Architecture: WINDOWS Score: 100 50 mr-b01.tm-azurefd.net 2->50 52 casoneroutegold-prod-bggfgca0dkaag8a8.b01.azurefd.net 2->52 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Multi AV Scanner detection for submitted file 2->60 62 11 other signatures 2->62 9 wscript.exe 1 2->9         started        12 wscript.exe 1 4 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\Local\Temp\26400.ps1, Unicode 9->36 dropped 15 cmd.exe 1 9->15         started        18 cmd.exe 1 9->18         started        38 C:\Users\user\AppData\Local\Temp\63129.ps1, Unicode 12->38 dropped 40 C:\Users\user\AppData\Local\...\manifest.js, ASCII 12->40 dropped 72 Wscript starts Powershell (via cmd or directly) 12->72 74 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->74 76 Suspicious execution chain found 12->76 78 Creates processes via WMI 12->78 signatures6 process7 signatures8 80 Suspicious powershell command line found 15->80 82 Wscript starts Powershell (via cmd or directly) 15->82 20 powershell.exe 15 15->20         started        23 conhost.exe 15->23         started        25 powershell.exe 15 18->25         started        27 conhost.exe 18->27         started        process9 signatures10 64 Writes to foreign memory regions 20->64 66 Allocates memory in foreign processes 20->66 68 Injects a PE file into a foreign processes 20->68 29 MSBuild.exe 4 5 20->29         started        34 MSBuild.exe 25->34         started        70 Installs a global keyboard hook 27->70 process11 dnsIp12 54 204.10.160.180, 2404, 49721, 49722 UNREAL-SERVERS-UnRealServersLLCUS United States 29->54 42 C:\Users\user\AppData\...\Login Data.tmp, SQLite 29->42 dropped 44 C:\Users\user\AppData\...\Login Data.tmp, SQLite 29->44 dropped 46 C:\Users\user\...\Login Data For Account.tmp, SQLite 29->46 dropped 48 C:\ProgramData\remcos\logs.dat, data 29->48 dropped 84 Contains functionality to bypass UAC (CMSTPLUA) 29->84 86 Detected Remcos RAT 29->86 88 Contains functionalty to change the wallpaper 29->88 90 5 other signatures 29->90 file13 signatures14
Score:
13%
Verdict:
Benign
File Type:
SCRIPT
Link:
https://malprob.io/report/9caf23dfe09762c4e1d0f1a92c2791ec576665a2c40fb897b78e4e2a458d4f45
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9caf23dfe09762c4e1d0f1a92c2791ec576665a2c40fb897b78e4e2a458d4f45/
Threat name:
Win32.Trojan.Sonbokli
Create hunting rule
Status:
Malicious
First seen:
2026-10-08 06:14:09 UTC
File Type:
Text (JavaScript)
AV detection:
10 of 38 (26.32%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tsxshx7as5rmjyoq6gusyj4r5rlwmzncyqh3rf5xrzhcurmnj5cq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery execution persistence rat
Link:
https://tria.ge/reports/261008-jlgceavs6q/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
Command and Scripting Interpreter: JavaScript
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Command and Scripting Interpreter: PowerShell
Family: Remcos
Process spawned unexpected child process
Malware Config
C2 Extraction:
204.10.160.180:2404
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9caf23dfe09762c4e1d0f1a92c2791ec576665a2c40fb897b78e4e2a458d4f45

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:ClamAV_Emotet_String_Aggregate
Create hunting rule
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:JS_PurgeRoster_Scheduled_Task_Persistence_37200092
Create hunting rule
Author:Aldair Maihuiri
Description:Detects the PurgeRoster scheduled-task persistence component in a WSH PowerShell loader
Rule name:JS_WSH_PurgeRoster_PowerShell_Loader_37200092
Create hunting rule
Author:Aldair Maihuiri
Description:Detects a Source Filmmaker-decoy WSH backdoor that persists as PurgeRoster and launches an obfuscated PowerShell payload
Rule name:SCRIPT_Dropper_Unknown_ForgeAuto_0507f067_Script
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (script_js, etat script)
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
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