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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8238e4ba5d2aafcb132239f682f11ba67387adc8abc80ac0614d3dbe3634e6d. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c8238e4ba5d2aafcb132239f682f11ba67387adc8abc80ac0614d3dbe3634e6d
SHA3-384 hash: a2ab15eada2f92bbe8dc8880f14ee619491e69597e9e6300ec72526ce0559273c55ed687e27d90a4b46300d8b16abb7d
SHA1 hash: c68e16991a3453fc8a33abe802421830efaa1fec
MD5 hash: 00073a5b3551f0759bf070f9954c96c0
humanhash: avocado-stairway-twenty-river
File name:eReceipt.js
Download: download sample
Signature Vjw0rm
Create hunting rule
File size:60'355 bytes
First seen:2022-05-17 21:08:10 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 1536:KsCSsH70UPi7qzBeIqwitzYNJO4b4aA0f0:ODfXBeIqwitzYXt4Mc
TLSH T13D43E5DC6E64E4AFC964983A7C3A6CCA47B45A1B8454D7CE781F72405BB8306CBDD06C
Reporter abuse_ch
Tags:js vjw0rm


Avatar
abuse_ch
Vjw0rm C2:
http://zeegod.duckdns.org:9003/Vre

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://zeegod.duckdns.org:9003/Vre https://threatfox.abuse.ch/ioc/586231/

Intelligence

File Origin
# of uploads :
1
# of downloads :
441
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.JS.Trojan.Cryxos.8087.15406.24171.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm evasive obfuscated wscript wscript.exe
Link:
https://www.filescan.io/uploads/62840ef470e563c3836b0249/reports/ad44cdac-e082-4a5f-8fdf-379c90cc4e41/overview
Result
Threat name:
VjW0rm
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/996305
Signature
Antivirus detection for URL or domain
Creates multiple autostart registry keys
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 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
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 628800 Sample: eReceipt.js Startdate: 17/05/2022 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic 2->41 43 Multi AV Scanner detection for domain / URL 2->43 45 Antivirus detection for URL or domain 2->45 47 7 other signatures 2->47 6 wscript.exe 2 17 2->6         started        11 wscript.exe 13 2->11         started        13 wscript.exe 13 2->13         started        15 4 other processes 2->15 process3 dnsIp4 37 zeegod.duckdns.org 212.193.30.129, 49762, 49772, 49781 SPD-NETTR Russian Federation 6->37 39 192.168.2.1 unknown unknown 6->39 29 C:\Users\user\...\eReceipt.js:Zone.Identifier, ASCII 6->29 dropped 31 C:\Users\user\AppData\Roaming\eReceipt.js, ASCII 6->31 dropped 33 C:\Users\user\AppData\Roaming\XZqsVjnTsr.js, ASCII 6->33 dropped 35 2 other malicious files 6->35 dropped 51 System process connects to network (likely due to code injection or exploit) 6->51 53 Drops script or batch files to the startup folder 6->53 55 Creates multiple autostart registry keys 6->55 57 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 6->57 17 wscript.exe 1 7 6->17         started        59 Wscript called in batch mode (surpress errors) 11->59 21 wscript.exe 11->21         started        23 wscript.exe 13->23         started        25 wscript.exe 15->25         started        file5 signatures6 process7 file8 27 C:\Users\user\AppData\...\XZqsVjnTsr.js, ASCII 17->27 dropped 49 Creates multiple autostart registry keys 17->49 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8238e4ba5d2aafcb132239f682f11ba67387adc8abc80ac0614d3dbe3634e6d/
Threat name:
Script-JS.Trojan.Cryxos
Create hunting rule
Status:
Malicious
First seen:
2022-05-17 19:10:04 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 41 (19.51%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zary4s5f2kvpzmjseopwqlyrxjttq6w4rk6iblagctj5xy3djzwq._file
Result
Malware family:
vjw0rm
Create hunting rule
Score:
  10/10
Tags:
family:vjw0rm persistence trojan worm
Link:
https://tria.ge/reports/220517-zzezhahdf8/
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://zeegod.duckdns.org:9003
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8238e4ba5d2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/c8238e4ba5d2aafcb132239f682f11ba67387adc8abc80ac0614d3dbe3634e6d

File information

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

Comments