MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50. 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: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50
SHA3-384 hash: 1b79813077aedc1cf3746d758a62fbe5beb990272c2723d579e4a88894723649c7075a2b697a6f042e7ef15e16e5b0b9
SHA1 hash: d86eac68820c39703e52142d3bf450525a9f8d6c
MD5 hash: b226987db14d44762e9ebefcda95e144
humanhash: robert-delta-sixteen-finch
File name:Receipt.js
Download: download sample
Signature Vjw0rm
Create hunting rule
File size:3'885 bytes
First seen:2023-03-08 06:35:31 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 96:SABNo5DRk2c24ZRMHXE6/BIH+Ys+fJbEkDdQqR7bJyKhdOS4UK:zSa2c24ZRMlBIeYs+fJA6fRfap
TLSH T14C81209C2C4B863C53D23B8A802ED14CCDF548B47E28D2B5148CDAC5360E97987B29BE
Reporter abuse_ch
Tags:js vjw0rm


Avatar
abuse_ch
Vjw0rm C2:
http://ourvjworm.duckdns.org:7974/Vre

Intelligence

File Origin
# of uploads :
1
# of downloads :
294
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28850.Heur.BadBat.UNOFFICIAL
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
75%
Tags:
anti-vm evasive obfuscated
Link:
https://www.filescan.io/uploads/64082cd5e96aa01651236ddd/reports/c3a4c696-4a84-441c-a57f-74dacec68f91/overview
Verdict:
Malicious
Labled as:
TrojanDownloader/JS.Nemucod
Link:
https://www.hybrid-analysis.com/sample/6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50
Result
Verdict:
MALICIOUS
Result
Threat name:
VjW0rm
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1189184
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Drops script or batch files to the startup folder
JavaScript source code contains functionality to check for AV products
JavaScript source code contains functionality to generate code involving HTTP requests or file downloads
JScript performs obfuscated calls to suspicious functions
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Sigma detected: Drops script at startup location
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected VjW0rm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 822060 Sample: Receipt.js Startdate: 08/03/2023 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic 2->48 50 Antivirus detection for dropped file 2->50 52 Antivirus / Scanner detection for submitted sample 2->52 54 8 other signatures 2->54 7 wscript.exe 2 16 2->7         started        12 wscript.exe 13 2->12         started        14 wscript.exe 13 2->14         started        16 2 other processes 2->16 process3 dnsIp4 46 ourvjworm.duckdns.org 45.249.91.29, 49703, 49704, 49705 VDI-NETWORKUS United States 7->46 38 C:\Users\user\...\Receipt.js:Zone.Identifier, ASCII 7->38 dropped 40 C:\Users\user\AppData\Roaming\...\Receipt.js, ASCII 7->40 dropped 42 C:\Users\user\...\Receipt.js:Zone.Identifier, ASCII 7->42 dropped 44 C:\Users\user\AppData\Local\Temp\Receipt.js, ASCII 7->44 dropped 56 System process connects to network (likely due to code injection or exploit) 7->56 58 JScript performs obfuscated calls to suspicious functions 7->58 60 Drops script or batch files to the startup folder 7->60 62 2 other signatures 7->62 18 schtasks.exe 1 7->18         started        20 schtasks.exe 1 12->20         started        22 schtasks.exe 1 14->22         started        24 schtasks.exe 1 16->24         started        26 schtasks.exe 1 16->26         started        file5 signatures6 process7 process8 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 24->34         started        36 conhost.exe 26->36         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50/
Threat name:
Script-JS.Trojan.Vajawom
Create hunting rule
Status:
Malicious
First seen:
2023-03-08 06:41:21 UTC
File Type:
Text (VBS)
AV detection:
23 of 39 (58.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nxtehumfsuvjsa5la3jyfrbxhziwgkktm42nsc7dbeaev6vf5jia._file
Result
Malware family:
vjw0rm
Create hunting rule
Score:
  10/10
Tags:
family:vjw0rm persistence trojan worm
Link:
https://tria.ge/reports/230308-hcxscsdh9t/
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
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://ourvjworm.duckdns.org:7974
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6de643d18595/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50

File information

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

Comments