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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 da581bea8917ae4b052e9978b8264b3257e06d80b2973c29e80cdf216a8640c4. 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 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: da581bea8917ae4b052e9978b8264b3257e06d80b2973c29e80cdf216a8640c4
SHA3-384 hash: 273bdfab076bcde3306640f4b35c770f23a4d0ecb06c2adc24f5798cc91568ddbecb6193cbf6f63f78f5b0a77bb8dcde
SHA1 hash: 13293c020e2eec88e5627a44ec8eafa3b0d0f6ab
MD5 hash: d873c25379f94f8a1803f4c968befaf6
humanhash: arizona-crazy-jig-king
File name:FCR22001306.js
Download: download sample
Signature Vjw0rm
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File size:274'963 bytes
First seen:2022-11-01 08:15:56 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:xGFYHhbq8fCQFiem5yBmExNr2sBB1fbNQnTXFEZhRZfUQ0jShn8nc2KVHybnuRAL:sF8fCQHWsBBJpYEPfM3jY2+4CAU9i
TLSH T1D844F151CE555F54DF1C2E0258BC8C6C13F06DCF01B2A98F77AAF948A7EB809921B69C
Reporter abuse_ch
Tags:js vjw0rm


Avatar
abuse_ch
Vjw0rm C2:
http://egodds.longmusic.com:2084/is-ready

Intelligence

File Origin
# of uploads :
1
# of downloads :
269
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.JS.Obfus-2225.UNOFFICIAL
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
67%
Tags:
anti-vm evasive fingerprint obfuscated wscript.exe
Link:
https://www.filescan.io/uploads/6360d5c4791bb7e48afdf775/reports/fc5f549c-a874-45a8-b418-983d8c7178c0/overview
Result
Threat name:
WSHRat, VjW0rm
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Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1102361
Signature
Contains VNC / remote desktop functionality (version string found)
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
May check the online IP address of the machine
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
System process connects to network (likely due to code injection or exploit)
Wscript called in batch mode (surpress errors)
Yara detected VjW0rm
Yara detected WSHRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 735021 Sample: FCR22001306.js Startdate: 01/11/2022 Architecture: WINDOWS Score: 100 56 Sigma detected: Register Wscript In Run Key 2->56 58 Multi AV Scanner detection for domain / URL 2->58 60 Yara detected VjW0rm 2->60 62 7 other signatures 2->62 7 wscript.exe 3 7 2->7         started        11 wscript.exe 2->11         started        13 wscript.exe 2 2->13         started        15 3 other processes 2->15 process3 dnsIp4 38 C:\Users\user\AppData\Roaming\lzwNNcWAsq.js, ASCII 7->38 dropped 40 C:\Users\...\FCR22001306.js:Zone.Identifier, ASCII 7->40 dropped 42 C:\Users\user\AppData\...\FCR22001306.js, ASCII 7->42 dropped 44 2 other malicious files 7->44 dropped 68 System process connects to network (likely due to code injection or exploit) 7->68 70 Detected WSHRat 7->70 72 JScript performs obfuscated calls to suspicious functions 7->72 76 3 other signatures 7->76 18 wscript.exe 15 7->18         started        22 wscript.exe 1 13 7->22         started        74 Wscript called in batch mode (surpress errors) 11->74 25 wscript.exe 11->25         started        27 wscript.exe 12 13->27         started        54 javaautorun.duia.ro 15->54 29 wscript.exe 15->29         started        31 wscript.exe 15->31         started        file5 signatures6 process7 dnsIp8 48 egodds.longmusic.com 172.93.220.135, 2084, 49702, 49704 XTOM-AS-JPxTomJP United States 18->48 50 ip-api.com 208.95.112.1, 49701, 80 TUT-ASUS United States 18->50 64 System process connects to network (likely due to code injection or exploit) 18->64 66 Wscript called in batch mode (surpress errors) 18->66 33 wscript.exe 18->33         started        52 javaautorun.duia.ro 41.217.12.189, 5465 SpectranetNG Nigeria 22->52 36 C:\Users\user\AppData\...\lzwNNcWAsq.js, ASCII 22->36 dropped file9 signatures10 process11 dnsIp12 46 javaautorun.duia.ro 33->46
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/da581bea8917ae4b052e9978b8264b3257e06d80b2973c29e80cdf216a8640c4/
Threat name:
Script-JS.Trojan.Cryxos
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Status:
Malicious
First seen:
2022-11-01 08:16:08 UTC
File Type:
Text (JavaScript)
AV detection:
6 of 41 (14.63%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=3jmbx2ujc6xewbjotf4lqjslgjl6a3mawkltykpibtpsc2ugidca._file
Result
Malware family:
wshrat
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Score:
  10/10
Tags:
family:vjw0rm family:wshrat collection persistence spyware stealer trojan worm
Link:
https://tria.ge/reports/221101-j548ksadfk/
Behaviour
Kills process with taskkill
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Accesses Microsoft Outlook accounts
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Reads user/profile data of web browsers
Blocklisted process makes network request
Executes dropped EXE
NirSoft MailPassView
Nirsoft
Vjw0rm
WSHRAT
Malware Config
C2 Extraction:
http://egodds.longmusic.com:2084
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/da581bea8917/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.64
Link:
https://yomi.yoroi.company/submissions/da581bea8917ae4b052e9978b8264b3257e06d80b2973c29e80cdf216a8640c4

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:Base64_Encoded_Powershell_Directives
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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