MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 bb4bb43da97cf6ce8953d1000f9f292c38f13492e6f959f7a8e1c24919d102b0. 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: 12
| SHA256 hash: | bb4bb43da97cf6ce8953d1000f9f292c38f13492e6f959f7a8e1c24919d102b0 |
|---|---|
| SHA3-384 hash: | d0fd6d15ed52a9e4d6ec4a5ffed6c784333d40741209e068525738c27efcc9d04bbbc5e6e24a344ae2072028604e37fe |
| SHA1 hash: | b7c137d038f8c56a24b99182b3af471ceba0fddd |
| MD5 hash: | 2dbc196f7762cc80fdbf18bd18b5d396 |
| humanhash: | mountain-north-thirteen-red |
| File name: | Scan Document.js |
| Download: | download sample |
| Signature | XWorm |
| File size: | 2'236'768 bytes |
| First seen: | 2025-08-12 21:45:22 UTC |
| Last seen: | Never |
| File type: |  js |
| MIME type: | text/plain |
| ssdeep | 24576:h95YM7VT8rgXkJVd201ooY9G3gGbz9cGOXpQ/lBR1cI5qrp+SQOY0hHtu6hdoyVW:h//nmDt1ooYwgGPuXGUpygdWPYfY |
| Threatray | 6 similar samples on MalwareBazaar |
| TLSH | T1D5A5E0348D53AD9E3BE95EC844CC2DC41D6C1FDBC2A4A614AE5CB2B235CE5119AEC4BC |
| Magika | vba |
| Reporter |  abuse_ch |
| Tags: | js xworm |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 198.135.49.120:3281 | https://threatfox.abuse.ch/ioc/1567634/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
71
Origin country :
NLVendor Threat Intelligence
Detection(s):
Verdict:
Malicious
Score:
91.7%
Tags:
delphi emotet
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-debug base64 dropper fingerprint keylogger obfuscated obfuscated packed packed
Verdict:
Malicious
Labled as:
GT:JS.Cbum.1
Result
Threat name:
DBatLoader, StormKitty, XWorm
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates many large memory junks
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Detected unpacking (overwrites its own PE header)
Drops PE files to the user root directory
Found malware configuration
JavaScript file contains suspicious strings
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses process hollowing technique
Sample uses string decryption to hide its real strings
Sigma detected: Execution from Suspicious Folder
Sigma detected: Suspicious Program Location with Network Connections
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
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
Yara detected BrowserPasswordDump
Yara detected DBatLoader
Yara detected StormKitty Stealer
Yara detected XWorm
Behaviour
Behavior Graph:
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Gathering data
Verdict:
Malicious
Threat:
Backdoor.MSIL.XWorm
Threat name:
Script-JS.Dropper.RemcosRAT
Status:
Malicious
First seen:
2025-08-12 21:34:48 UTC
File Type:
Text
AV detection:
14 of 24 (58.33%)
Threat level:
3/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
dbatloader
unc_loader_001
Similar samples:
Result
Malware family:
stormkitty
Score:
10/10
Tags:
family:modiloader family:stormkitty discovery execution persistence spyware stealer trojan
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Browser Information Discovery
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Reads user/profile data of web browsers
ModiLoader Second Stage
ModiLoader, DBatLoader
Modiloader family
StormKitty
StormKitty payload
Stormkitty family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | botnet_plaintext_c2 |
|---|---|
| Author: | cip |
| Description: | Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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