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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bff6f7bbf77fbb6916ac028e3ed306d737e5a9cd1f31e9cff7f0eb7bac049ffc. 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


XWorm


Vendor detections: 14


Intelligence 14 IOCs YARA 22 File information Comments
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SHA256 hash: bff6f7bbf77fbb6916ac028e3ed306d737e5a9cd1f31e9cff7f0eb7bac049ffc
SHA3-384 hash: 6639f766567f5a6e39b90d37d4b906c117e42eebd853d12361abdcf8e7d507eec5be5cf82fdcb74aaeaab900596a3576
SHA1 hash: eb469d9fa4c9dd1cb164d85d64dc8d165bbf0d71
MD5 hash: 18e9507d576c920113bf61aeda17ed88
humanhash: hotel-artist-sad-helium
File name:AceptadaACT.js
Download: download sample
Signature XWorm
Create hunting rule
File size:68'879 bytes
First seen:2026-11-05 09:27:57 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 1536:f8xDAx3E6epnY7r3bKmweKwDv0FhrWy0wuQ9:f8vnYP3bKmPnDvehp0W
TLSH T1E963F14BE596AC29EADF80BB537FC860B8DD516E18149D30B14D62F3AF591200E6EC27
Magika javascript
Reporter abuse_ch
Tags:js xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
166
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6aebb451c120a0b2748cae94
Tags:
proxy java
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Using the Windows Management Instrumentation requests
Creating a process from a recently created file
Creating a file in the %temp% directory
Creating a file in the %temp% subdirectories
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
JS/Agent.VQP trojan
Link:
https://www.hybrid-analysis.com/sample/bff6f7bbf77fbb6916ac028e3ed306d737e5a9cd1f31e9cff7f0eb7bac049ffc
Verdict:
Malicious
File Type:
js
First seen:
2026-11-04T14:01:00Z UTC
Last seen:
2026-11-05T04:58:00Z UTC
Hits:
~100
Detections:
Backdoor.Agent.TCP.C&C Trojan.VBS.SAgent.sb Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic PDM:Trojan.Win32.Generic HEUR:Trojan.PowerShell.Alien.gen
Link:
https://opentip.kaspersky.com/bff6f7bbf77fbb6916ac028e3ed306d737e5a9cd1f31e9cff7f0eb7bac049ffc/results?tab=lookup
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1998886
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Found malware configuration
Injects a PE file into a foreign processes
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
Sample uses string decryption to hide its real strings
Sigma detected: Script Interpreter Execution From Suspicious Folder
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
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
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 reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
Yara detected Powershell decode and execute
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1998886 Sample: AceptadaACT.js Startdate: 05/11/2026 Architecture: WINDOWS Score: 100 49 remremrem2021marzo2021.duckdns.org 2->49 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 Antivirus detection for URL or domain 2->57 61 15 other signatures 2->61 9 wscript.exe 4 2->9         started        13 wscript.exe 1 7 2->13         started        signatures3 59 Uses dynamic DNS services 49->59 process4 file5 41 C:\Users\user\AppData\Local\...\w58147.ps1, Unicode 9->41 dropped 63 WScript reads language and country specific registry keys (likely country aware script) 9->63 15 powershell.exe 17 9->15         started        18 powershell.exe 17 9->18         started        20 schtasks.exe 1 9->20         started        43 C:\Users\user\AppData\Local\...\w19545.ps1, Unicode 13->43 dropped 45 C:\Users\user\AppData\Local\...\8007124.xml, XML 13->45 dropped 47 C:\Users\user\AppData\...\FontMetrics.js, JavaScript 13->47 dropped 65 Wscript starts Powershell (via cmd or directly) 13->65 67 Bypasses PowerShell execution policy 13->67 69 Uses schtasks.exe or at.exe to add and modify task schedules 13->69 71 3 other signatures 13->71 22 schtasks.exe 1 13->22         started        signatures6 process7 signatures8 73 Writes to foreign memory regions 15->73 75 Allocates memory in foreign processes 15->75 77 Suspicious execution chain found 15->77 24 RegAsm.exe 2 15->24         started        27 conhost.exe 15->27         started        79 Injects a PE file into a foreign processes 18->79 29 RegAsm.exe 1 18->29         started        31 conhost.exe 18->31         started        33 conhost.exe 20->33         started        35 MpCmdRun.exe 22->35         started        37 conhost.exe 22->37         started        process9 dnsIp10 51 remremrem2021marzo2021.duckdns.org 109.120.139.126, 3009, 49714, 49715 AEZA-ASRU Netherlands 24->51 39 conhost.exe 35->39         started        process11
Score:
95%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/bff6f7bbf77fbb6916ac028e3ed306d737e5a9cd1f31e9cff7f0eb7bac049ffc
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bff6f7bbf77fbb6916ac028e3ed306d737e5a9cd1f31e9cff7f0eb7bac049ffc/
Threat name:
Script-JS.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-11-04 17:15:32 UTC
File Type:
Text (JavaScript)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x73ppo7xp65wsfvmakhd5uyg2436lkond4y6tt7x6dvxxlaet76a._file
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm discovery execution persistence rat trojan
Link:
https://tria.ge/reports/261105-lffvssht5s/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Detect Xworm Payload
Family: Xworm
Process spawned unexpected child process
Malware Config
C2 Extraction:
remremrem2021marzo2021.duckdns.org:3009
Malware Family:
xworm
Create hunting rule
Malicious:
True
Tags:
obfuscated long-sleeps self-delete javascript
Link:
https://intel.virussign.com/intelligence/file/bff6f7bbf77fbb6916ac028e3ed306d737e5a9cd1f31e9cff7f0eb7bac049ffc
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bff6f7bbf77f/report/overview.html
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/bff6f7bbf77fbb6916ac028e3ed306d737e5a9cd1f31e9cff7f0eb7bac049ffc

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:ByteCode_MSIL_Backdoor_AsyncRAT
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Author:ReversingLabs
Description:Yara rule that detects AsyncRAT backdoor.
Rule name:Detect_PowerShell_Obfuscation
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Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
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Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:MALWARE_Win_AsyncRAT
Create hunting rule
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
Create hunting rule
Author:ditekSHen
Description:Detects XWorm
Rule name:MAL_AsyncRAT_Family_V_0_5_8
Create hunting rule
Author:Trezzza
Description:Detects AsyncRAT version 0.5.8 and some other versions of AsyncRAT. The name reflects the analysed sample.
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:rat_win_xworm_v3
Create hunting rule
Author:Sekoia.io
Description:Finds XWorm (version XClient, v3) samples based on characteristic strings
Rule name:SCRIPT_Dropper_Unknown_ForgeAuto_aaa464f7
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (script_js, etat binaire)
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Suspicious_Process
Create hunting rule
Author:Security Research Team
Description:Suspicious process creation
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_Script_PowerShell_Hidden_Launcher
Create hunting rule
Author:Marjoriefort
Description:Script (JS/VBS) lancant PowerShell en mode furtif - dropper frais MalwareBazaar
Reference:Veille fraicheur 2026-09-14 / cluster misses web
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)
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects XWorm (pe, etat extrait)
Rule name:WIN_Sample_Unique_69354b41
Create hunting rule
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe
Rule name:win_xworm_w0
Create hunting rule
Author:jeFF0Falltrades
Description:Detects win.xworm.
Rule name:WScript_Shell_PowerShell_Combo_RID32E7
Create hunting rule
Author:Florian Roth
Description:Detects malware from Middle Eastern campaign reported by Talos
Reference:http://blog.talosintelligence.com/2018/02/targeted-attacks-in-middle-east.html
Rule name:xworm
Create hunting rule
Author:jeFF0Falltrades

File information

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

Comments