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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f99b225c0d14510eb84574459d32b247501ccc4a1858fdcd621ec5c75835b2d7. 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


Vjw0rm


Vendor detections: 6


Intelligence 6 IOCs 1 YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f99b225c0d14510eb84574459d32b247501ccc4a1858fdcd621ec5c75835b2d7
SHA3-384 hash: 22bc76114c8ecee6e9abe95f68cd600954dc99885dff65eca0dfdb1c2dbba8090023d4887fa97c8ebf982abd195a204e
SHA1 hash: 4dac9406a01593a7420a051ab8ec5104213b5eec
MD5 hash: 505014a43f13acfc6888cad837f8f8fd
humanhash: harry-music-robert-lamp
File name:SYCKwXPGSNvjmnx.js
Download: download sample
Signature Vjw0rm
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File size:60'863 bytes
First seen:2022-05-17 13:45:14 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 768:Ks9cWJAsw+Djol94whdGhfu/dv3A2xKBoYzoYD0zBD7a+e3P0:Ksbk9BOful3AtBoYzoY4zVq0
TLSH T10853F5DC2D54D8AFC924993A7C3AACC947F45A1B9490D3CE750FB2441F68382D7ED828
Reporter abuse_ch
Tags:js vjw0rm


Avatar
abuse_ch
Vjw0rm C2:
http://brianrt027.nerdpol.ovh:5200/Vre

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://brianrt027.nerdpol.ovh:5200/Vre https://threatfox.abuse.ch/ioc/582507/

Intelligence

File Origin
# of uploads :
1
# of downloads :
343
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.JS.Trojan.Cryxos.8087.17934.8908.UNOFFICIAL
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm evasive obfuscated wscript wscript.exe
Link:
https://www.filescan.io/uploads/6283a78722b733139c254bbe/reports/dedb7779-316d-4b93-a683-c06a67a4f0ac/overview
Result
Threat name:
VjW0rm
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Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/995875
Signature
Antivirus detection for URL or domain
Drops script or batch files to the startup folder
JavaScript source code contains call to eval containing suspicious API calls
Multi AV Scanner detection for submitted file
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Sigma detected: Drops script at startup location
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Uses known network protocols on non-standard ports
Wscript called in batch mode (surpress errors)
Yara detected VjW0rm
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f99b225c0d14510eb84574459d32b247501ccc4a1858fdcd621ec5c75835b2d7/
Threat name:
Script-JS.Trojan.Cryxos
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Status:
Malicious
First seen:
2022-05-17 13:46:06 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 26 (30.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7gnsexancriq5ocforcz2mvsi5ibztckdbmp3tlcd3c4owbvwllq._file
Result
Malware family:
vjw0rm
Create hunting rule
Score:
  10/10
Tags:
family:vjw0rm persistence trojan worm
Link:
https://tria.ge/reports/220517-q2y1qacfc2/
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Checks computer location settings
Drops startup file
Blocklisted process makes network request
Vjw0rm
Malware Config
C2 Extraction:
http://brianrt027.nerdpol.ovh:5200
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/f99b225c0d14510eb84574459d32b247501ccc4a1858fdcd621ec5c75835b2d7

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:BitcoinAddress
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Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address

File information

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

Comments