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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 249286c788bbb4516434642622ad0f06b9ac29995169bc0c2b01f320c61eefee. 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: 7


Intelligence 7 IOCs 2 YARA File information Comments

SHA256 hash: 249286c788bbb4516434642622ad0f06b9ac29995169bc0c2b01f320c61eefee
SHA3-384 hash: 71aec24edbaa6887d93f28962c5fc1a5e4bfa51be2b3fb9d71f7b2ab0a31a142edd20011dded43a97eebdec26ed7f103
SHA1 hash: 93c04b7c3f56efa0561ba23d7992298c66739e93
MD5 hash: 71d72e93e3d6b2135f6b8526d71f6e00
humanhash: carolina-mountain-crazy-cardinal
File name:POSEP006.js
Download: download sample
Signature Vjw0rm
File size:43'750 bytes
First seen:2022-09-23 22:45:43 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 768:wa+RNmrwMoGJpbJF/SIMexBAxJ/sPLh4u9jx0izjlUXV4dUQ0SaIZ0rD:t+YVoGJpbj/SIM7T/sP94sjx0izjlU1H
TLSH T1D3138E75D93B0B50FF982A414AF8EE391F7D2D8E25B10CEE77854288939202D715D2BD
Reporter abuse_ch
Tags:js vjw0rm


Avatar
abuse_ch
Vjw0rm C2:
http://favour123.duckdns.org:1979/is-ready

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
http://favour123.duckdns.org:1979/is-ready https://threatfox.abuse.ch/ioc/851389/
37.0.14.204:1979 https://threatfox.abuse.ch/ioc/851390/

Intelligence


File Origin
# of uploads :
1
# of downloads :
340
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm evasive obfuscated wscript.exe
Result
Threat name:
WSHRat, VjW0rm
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Detected WSHRat
Drops script or batch files to the startup folder
JavaScript source code contains functionality to generate code involving a shell, file or stream
JScript performs obfuscated calls to suspicious functions
Multi AV Scanner detection for domain / URL
Potential malicious VBS/JS script found (suspicious encoded strings)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Sigma detected: Drops script at startup location
Sigma detected: Register Wscript In Run Key
Sigma detected: VjW0rm
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Uses dynamic DNS services
Uses known network protocols on non-standard ports
Wscript called in batch mode (surpress errors)
Yara detected VjW0rm
Yara detected WSHRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 708741 Sample: POSEP006.js Startdate: 24/09/2022 Architecture: WINDOWS Score: 100 48 Sigma detected: Register Wscript In Run Key 2->48 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 9 other signatures 2->54 7 wscript.exe 3 6 2->7         started        11 wscript.exe 12 2->11         started        14 wscript.exe 2->14         started        16 3 other processes 2->16 process3 dnsIp4 30 C:\Users\user\AppData\Roaming\WchHAujlaB.js, ASCII 7->30 dropped 32 C:\Users\user\...\POSEP006.js:Zone.Identifier, ASCII 7->32 dropped 34 C:\Users\user\AppData\Roaming\POSEP006.js, ASCII 7->34 dropped 36 2 other malicious files 7->36 dropped 60 System process connects to network (likely due to code injection or exploit) 7->60 62 Detected WSHRat 7->62 64 JScript performs obfuscated calls to suspicious functions 7->64 66 3 other signatures 7->66 18 wscript.exe 8 7->18         started        22 wscript.exe 1 13 7->22         started        46 javaautorun.duia.ro 11->46 file5 signatures6 process7 dnsIp8 38 favour123.duckdns.org 37.0.14.204, 1979, 49699, 49705 WKD-ASIE Netherlands 18->38 56 System process connects to network (likely due to code injection or exploit) 18->56 58 Wscript called in batch mode (surpress errors) 18->58 25 wscript.exe 18->25         started        40 javaautorun.duia.ro 154.120.66.202, 5432 SpectranetNG Nigeria 22->40 28 C:\Users\user\AppData\...\WchHAujlaB.js, ASCII 22->28 dropped file9 signatures10 process11 dnsIp12 42 javaautorun.duia.ro 25->42 44 192.168.2.1 unknown unknown 25->44
Threat name:
Script-JS.Trojan.Vjw0rm
Status:
Malicious
First seen:
2022-09-23 22:46:07 UTC
File Type:
Text (JavaScript)
AV detection:
9 of 40 (22.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:vjw0rm family:wshrat persistence trojan worm
Behaviour
Script User-Agent
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
WSHRAT
Malware Config
C2 Extraction:
http://favour123.duckdns.org:1979
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Comments