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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c91bae3e00eabcee11b278419c503cbb28f94372f349ff56d0d04207d5f1e7fe. 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 2 YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c91bae3e00eabcee11b278419c503cbb28f94372f349ff56d0d04207d5f1e7fe
SHA3-384 hash: 2fb8109a78972ffa77d6eee5dfa2b01341597fe79196b58aec285fafdf7fb2e91e67b2232b225e6df3c9a1fc541cc518
SHA1 hash: af63806323c07129c6dcb138971496baeeddc856
MD5 hash: 5b6e9a548c15dc32988b91c6ca5ec2df
humanhash: wyoming-speaker-whiskey-leopard
File name:proof of payment.js
Download: download sample
Signature Vjw0rm
Create hunting rule
File size:40'067 bytes
First seen:2022-10-24 12:08:08 UTC
Last seen:2022-10-24 12:33:28 UTC
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 768:Ft7X36ZgnCdZ2xYUTn2rXoevZwPUJzUXE5:FdaWnCdZ8YUT8oevyozGE5
TLSH T15C036C928F8223A7DF0D07025F78F9997F74649EA0F25D6F2B09F96C047144AA49E06C
Reporter abuse_ch
Tags:js vjw0rm


Avatar
abuse_ch
Vjw0rm C2:
http://chuks.wikaba.com:6424/is-ready

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://chuks.wikaba.com:6424/is-ready https://threatfox.abuse.ch/ioc/916372/
109.206.243.106:6424 https://threatfox.abuse.ch/ioc/916373/

Intelligence

File Origin
# of uploads :
3
# of downloads :
208
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.JS.Agent.BJZ.gen.Eldorado.21428.14945.UNOFFICIAL
Create hunting rule

Result
Threat name:
WSHRat, VjW0rm
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1096484
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Detected WSHRat
Drops script or batch files to the startup folder
JScript performs obfuscated calls to suspicious functions
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
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 known network protocols on non-standard ports
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: 729129 Sample: proof of payment.js Startdate: 24/10/2022 Architecture: WINDOWS Score: 100 59 Sigma detected: Register Wscript In Run Key 2->59 61 Snort IDS alert for network traffic 2->61 63 Multi AV Scanner detection for domain / URL 2->63 65 10 other signatures 2->65 7 wscript.exe 3 6 2->7         started        11 wscript.exe 2 2->11         started        13 wscript.exe 12 2->13         started        16 3 other processes 2->16 process3 dnsIp4 37 C:\...\proof of payment.js:Zone.Identifier, ASCII 7->37 dropped 39 C:\Users\user\AppData\...\proof of payment.js, ASCII 7->39 dropped 41 C:\...\proof of payment.js:Zone.Identifier, ASCII 7->41 dropped 43 2 other malicious files 7->43 dropped 71 System process connects to network (likely due to code injection or exploit) 7->71 73 Detected WSHRat 7->73 75 JScript performs obfuscated calls to suspicious functions 7->75 79 2 other signatures 7->79 18 wscript.exe 8 7->18         started        22 wscript.exe 1 13 7->22         started        77 Wscript called in batch mode (surpress errors) 11->77 25 wscript.exe 11->25         started        27 wscript.exe 11->27         started        51 javaautorun.duia.ro 13->51 file5 signatures6 process7 dnsIp8 45 chuks.wikaba.com 109.206.243.106, 49699, 49701, 49702 AWMLTNL Germany 18->45 29 wscript.exe 18->29         started        47 javaautorun.duia.ro 41.217.11.192, 5465 SpectranetNG Nigeria 22->47 49 192.168.2.1 unknown unknown 22->49 35 C:\Users\user\AppData\...\IdYElVuqHy.js, ASCII 22->35 dropped 67 System process connects to network (likely due to code injection or exploit) 25->67 69 Wscript called in batch mode (surpress errors) 25->69 32 wscript.exe 25->32         started        file9 signatures10 process11 dnsIp12 53 javaautorun.duia.ro 29->53 55 javaautorun.duia.ro 32->55 57 System process connects to network (likely due to code injection or exploit) 32->57 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c91bae3e00eabcee11b278419c503cbb28f94372f349ff56d0d04207d5f1e7fe/
Threat name:
Script-JS.Trojan.Vjw0rm
Create hunting rule
Status:
Malicious
First seen:
2022-10-24 11:55:49 UTC
File Type:
Text (JavaScript)
AV detection:
12 of 42 (28.57%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zen24pqa5k6o4enspbazyub4xmupsq3s6ne76vwq2bbapvpr477a._file
Result
Malware family:
wshrat
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Score:
  10/10
Tags:
family:vjw0rm family:wshrat persistence trojan worm
Link:
https://tria.ge/reports/221024-pbe99agda6/
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://chuks.wikaba.com:6424
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/c91bae3e00eabcee11b278419c503cbb28f94372f349ff56d0d04207d5f1e7fe

File information

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

Malspam

Vjw0rm

rar d342cec59ebc05ff56c40ee2ffb1024883d89532f32ee3f2b53cc1ca57eb5259

Vjw0rm

Java Script (JS) js c91bae3e00eabcee11b278419c503cbb28f94372f349ff56d0d04207d5f1e7fe

(this sample)

  
Dropped by
SHA256 d342cec59ebc05ff56c40ee2ffb1024883d89532f32ee3f2b53cc1ca57eb5259
  
Dropped by
MD5 93b507e5fe85f2e4d84374cd4c1424cd

Comments