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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 effafa437a136c793b26083f6b920f3cf6c043da5dcd2e93fce16a68d6d8d538. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: effafa437a136c793b26083f6b920f3cf6c043da5dcd2e93fce16a68d6d8d538
SHA3-384 hash: 1e280afb0be876c845f7d1045f621b5f60855e97749ac56db836a2a5ab4d8bf48397059bed1803e14c71db92ac906697
SHA1 hash: e511fb53953ae59f636db34049a9857d58a7dce4
MD5 hash: 87d1ef10f47c5cd706835c6c2b236046
humanhash: spaghetti-timing-mango-yankee
File name:invoice-1645080830.pdf (28).js
Download: download sample
Signature XWorm
Create hunting rule
File size:23'424'194 bytes
First seen:2026-04-29 09:38:12 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 49152:4pF9pFWpF/pF+pFApF6pF0pF+pF1pFupFopF805uNDpFwpF7pFPpFvpF705uNmpc:u
TLSH T1383723660F0BEEAB0AB8738C307F1E8615F448E89A61E7F645E6BC4F47DB558500981F
Magika javascript
Reporter JAMESWT_WT
Tags:js xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
124
Origin country :
IT IT
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Labled as:
PowerShell/TrojanDownloader.Agent
Link:
https://www.hybrid-analysis.com/sample/effafa437a136c793b26083f6b920f3cf6c043da5dcd2e93fce16a68d6d8d538
Verdict:
Malicious
File Type:
js
First seen:
2026-04-29T07:22:00Z UTC
Last seen:
2026-04-29T23:51:00Z UTC
Hits:
~100
Detections:
Trojan.Agent.HTTP.C&C HEUR:Trojan.Script.Alien.gen HEUR:Trojan-Dropper.Win32.Agent.sb HEUR:Trojan.Script.Generic NetTool.PowerShellUA.HTTP.C&C NetTool.PowerShellGet.HTTP.C&C
Link:
https://opentip.kaspersky.com/effafa437a136c793b26083f6b920f3cf6c043da5dcd2e93fce16a68d6d8d538/results?tab=lookup
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/effafa437a136c793b26083f6b920f3cf6c043da5dcd2e93fce16a68d6d8d538
Gathering data
Gathering data
Verdict:
Malicious
Threat:
Family.XWORM
Link:
https://tip.neiki.dev/file/effafa437a136c793b26083f6b920f3cf6c043da5dcd2e93fce16a68d6d8d538
Threat name:
Script-JS.Trojan.Xworm
Create hunting rule
Status:
Malicious
First seen:
2026-04-29 09:02:18 UTC
File Type:
Text (JavaScript)
AV detection:
5 of 24 (20.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=575puq32cnwhsozgba7wxeqpht3maq62lxgs5e744fvgrvwy2u4a._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution persistence
Link:
https://tria.ge/reports/260429-lmssyaes5p/
Behaviour
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Browser Information Discovery
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Time Discovery
Drops file in Windows directory
ConfuserEx .NET packer
Adds Run key to start application
Checks computer location settings
Badlisted process makes network request
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/effafa437a136c793b26083f6b920f3cf6c043da5dcd2e93fce16a68d6d8d538

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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