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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 521b943d28bbf7f35b9c71ce36f813a0bc48257968fbd97c7153a58ad992d78b. 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: 6


Intelligence 6 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 521b943d28bbf7f35b9c71ce36f813a0bc48257968fbd97c7153a58ad992d78b
SHA3-384 hash: 10e0e16a832ba4b9112fda1cf7e5121d2103b571b97f13ac2c540bd7ca531471412baee8b865693ea5f22b6807b43ea1
SHA1 hash: 4f82ea8c64d9f7cd2c9a85f21605210ae40ea558
MD5 hash: dcc686b2565ee2599b2b9d4bf809ac80
humanhash: lemon-angel-north-bravo
File name:invoice-1645080830.pdf (19).js
Download: download sample
Signature XWorm
Create hunting rule
File size:23'684'321 bytes
First seen:2026-04-27 09:56:09 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 49152:N+YuYzdV0Yb2HhZNouNN2hZuqyqdB1ZdOvHAnthZchZyHpZhZBYrOmtlsYAEI7uG:d
TLSH T1A53723454F28176E1A7C84AD78CB0C9BADDE8F8D95903ED2318CAC5993C635F215B0EB
Magika javascript
Reporter JAMESWT_WT
Tags:js xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
114
Origin country :
IT IT
Vendor Threat Intelligence
No detections
Verdict:
Suspicious
Labled as:
PowerShell/TrojanDownloader.Agent
Link:
https://www.hybrid-analysis.com/sample/521b943d28bbf7f35b9c71ce36f813a0bc48257968fbd97c7153a58ad992d78b
Verdict:
Malicious
File Type:
js
First seen:
2026-04-27T07:20:00Z UTC
Last seen:
2026-04-27T12:58:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/521b943d28bbf7f35b9c71ce36f813a0bc48257968fbd97c7153a58ad992d78b/results?tab=lookup
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/521b943d28bbf7f35b9c71ce36f813a0bc48257968fbd97c7153a58ad992d78b
Gathering data
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kinzipjixp37gw44ohhdn6atuc6eqjlznd55s7drkosyvwms26fq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
adware discovery execution persistence spyware
Link:
https://tria.ge/reports/260427-lzag5agw5s/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
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 Location Discovery: System Language Discovery
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/521b943d28bbf7f35b9c71ce36f813a0bc48257968fbd97c7153a58ad992d78b

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)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Comments