MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 677536b7f1eb664ef689a5b418a6a38f75bac30e1f4a4b8d7e9e44a3888f0027. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 677536b7f1eb664ef689a5b418a6a38f75bac30e1f4a4b8d7e9e44a3888f0027
SHA3-384 hash: 618d5bf7ac3be4bc554e60d11b83c6b825f9aa62c7f10e21aa1cac41672190be1c70ebfc04e862ec5a33b7db27c598cf
SHA1 hash: 9d33ce1dc20771ab0a54861edd34bcf4a060b99f
MD5 hash: f91a0b0e5e65e68b932cec47155f345a
humanhash: october-yankee-monkey-coffee
File name:PURCHASE ORDER _P31080 BMH TECH COMPANY S-B0098711BMH-pdf.js
Download: download sample
Signature XWorm
Create hunting rule
File size:203'862 bytes
First seen:2025-08-25 10:52:18 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:J9xMEFbT6e+zgHWBFu2sj1+J9t4oP+L37:JYEdT6evWBFu2sj1+J9tXPMr
Threatray 225 similar samples on MalwareBazaar
TLSH T12214C73CCDA5BCD8872AB0E0259E3B41604C4BB3BA754E5CBDC598BF191814EDBB6718
Magika javascript
Reporter lowmal3
Tags:js xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
65
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68ac4073eb163e0ec182a749
Tags:
obfuscate autorun xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 evasive fingerprint masquerade obfuscated obfuscated powershell
Link:
https://www.filescan.io/uploads/68ac407c7137d684583b4906/reports/0f05eef9-9e7f-4dfc-90d2-4ae0f26189c9/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/677536b7f1eb664ef689a5b418a6a38f75bac30e1f4a4b8d7e9e44a3888f0027
Verdict:
Malicious
File Type:
js
First seen:
2025-08-25T07:03:00Z UTC
Last seen:
2025-08-25T07:03:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/677536b7f1eb664ef689a5b418a6a38f75bac30e1f4a4b8d7e9e44a3888f0027/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/1764456
Signature
.NET source code contains a sample name check
.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
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Drops script or batch files to the startup folder
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample has a suspicious name (potential lure to open the executable)
Sample uses string decryption to hide its real strings
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Uses dynamic DNS services
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1764456 Sample: PURCHASE ORDER _P31080 BMH ... Startdate: 25/08/2025 Architecture: WINDOWS Score: 100 105 hosterphobic.duckdns.org 2->105 117 Suricata IDS alerts for network traffic 2->117 119 Found malware configuration 2->119 121 Malicious sample detected (through community Yara rule) 2->121 125 14 other signatures 2->125 10 wscript.exe 1 1 2->10         started        14 cmd.exe 1 2->14         started        16 cmd.exe 1 2->16         started        18 6 other processes 2->18 signatures3 123 Uses dynamic DNS services 105->123 process4 file5 85 C:\Users\user\AppData\...\HelixFramework.bat, ASCII 10->85 dropped 135 Wscript starts Powershell (via cmd or directly) 10->135 137 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->137 139 Suspicious execution chain found 10->139 141 Creates processes via WMI 10->141 20 cmd.exe 1 10->20         started        23 cmd.exe 1 14->23         started        25 conhost.exe 14->25         started        27 cmd.exe 1 16->27         started        29 conhost.exe 16->29         started        31 cmd.exe 1 18->31         started        33 cmd.exe 18->33         started        35 cmd.exe 18->35         started        37 9 other processes 18->37 signatures6 process7 signatures8 127 Suspicious powershell command line found 20->127 129 Wscript starts Powershell (via cmd or directly) 20->129 39 cmd.exe 1 20->39         started        41 conhost.exe 20->41         started        43 cmd.exe 1 23->43         started        46 cmd.exe 1 27->46         started        48 cmd.exe 1 31->48         started        50 cmd.exe 33->50         started        52 cmd.exe 35->52         started        54 cmd.exe 37->54         started        56 2 other processes 37->56 process9 signatures10 58 cmd.exe 2 39->58         started        61 powershell.exe 43->61         started        64 conhost.exe 43->64         started        143 Suspicious powershell command line found 46->143 145 Wscript starts Powershell (via cmd or directly) 46->145 66 2 other processes 46->66 68 2 other processes 48->68 70 2 other processes 50->70 72 2 other processes 52->72 74 2 other processes 54->74 76 4 other processes 56->76 process11 file12 131 Suspicious powershell command line found 58->131 133 Wscript starts Powershell (via cmd or directly) 58->133 78 powershell.exe 4 30 58->78         started        83 conhost.exe 58->83         started        87 C:\Users\user\AppData\Roaming\...\5ec6.bat, ASCII 61->87 dropped 89 C:\Users\user\AppData\Roaming\...\8b6c.bat, ASCII 66->89 dropped 91 C:\Users\user\AppData\Roaming\...\d795.bat, ASCII 68->91 dropped 93 C:\Users\user\AppData\Roaming\...\d758.bat, ASCII 70->93 dropped 95 C:\Users\user\AppData\Roaming\...\7146.bat, ASCII 72->95 dropped 97 C:\Users\user\AppData\Roaming\...\76f7.bat, ASCII 74->97 dropped 99 C:\Users\user\AppData\Roaming\...\e35a.bat, ASCII 76->99 dropped 101 C:\Users\user\AppData\Roaming\...\caf0.bat, ASCII 76->101 dropped signatures13 process14 dnsIp15 107 hosterphobic.duckdns.org 193.187.91.237, 1111, 49719 OBE-EUROPEObenetworkEuropeSE Sweden 78->107 103 C:\Users\user\AppData\Roaming\...\6461.bat, ASCII 78->103 dropped 109 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 78->109 111 Drops script or batch files to the startup folder 78->111 113 Found suspicious powershell code related to unpacking or dynamic code loading 78->113 115 Loading BitLocker PowerShell Module 78->115 file16 signatures17
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/677536b7f1eb664ef689a5b418a6a38f75bac30e1f4a4b8d7e9e44a3888f0027/
Verdict:
Malicious
Threat:
Family.XWORM
Link:
https://tip.neiki.dev/file/677536b7f1eb664ef689a5b418a6a38f75bac30e1f4a4b8d7e9e44a3888f0027
Threat name:
Win32.Trojan.Acll
Create hunting rule
Status:
Malicious
First seen:
2025-08-25 10:27:51 UTC
File Type:
Text
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=m52tnn7r5nte55ujuw2brjvdr523vqyod5fexdl6tzckhcepaatq._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
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error
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+ 215 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm defense_evasion execution rat trojan
Link:
https://tria.ge/reports/250825-my8tzaer9s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Drops startup file
Badlisted process makes network request
Modifies trusted root certificate store through registry
Detect Xworm Payload
Process spawned unexpected child process
Xworm
Xworm family
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/677536b7f1eb664ef689a5b418a6a38f75bac30e1f4a4b8d7e9e44a3888f0027

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:SUSP_PS1_JAB_Pattern_Jun22_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects suspicious UTF16 and Base64 encoded PowerShell code that starts with a $ sign and a single char variable
Reference:Internal Research
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.

Malspam

XWorm

Java Script (JS) js 677536b7f1eb664ef689a5b418a6a38f75bac30e1f4a4b8d7e9e44a3888f0027

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments