vjw0rm | 59b74862f9d838a48f2672f4f957407c3b2fec19e4f737474543117eedce475a

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29/12/2024, 13:12

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General

Target

eReceipt.js
Size

23KB
MD5

0a88f3eb9d11b80339b2954140feb7ba
SHA1

1662879c2e251946f7d5497f863220dd91160102
SHA256

422e287276a07bcb879d792e793c47a3720d45ed01216531a49f78aefe17bd91
SHA512

7019a79a66239cb290fe3a6a845386bca020348b72b2b9b28337b839a0b5f2ebb0567211f43381eb1afea4b9c9099b73019d07d7e93f6f5ab2e65adc6c0c7665
SSDEEP

384:tm3uw3mx5W7X/ZIFMzhaPIuYYHqWJUXA7jhSBfoeXG+2FLbP8L5vO97oxEXdf3e:ol2xw7Xe1F2eUXsjEBnt2uZ27oxElu

Score

10^/10

vjw0rm execution persistence trojan worm

Malware Config

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Vjw0rm family
vjw0rm

Blocklisted process makes network request 16 IoCs

flow	pid	Process
7	452	wscript.exe
18	452	wscript.exe
23	452	wscript.exe
30	452	wscript.exe
46	452	wscript.exe
48	452	wscript.exe
50	452	wscript.exe
56	452	wscript.exe
58	452	wscript.exe
60	452	wscript.exe
68	452	wscript.exe
71	452	wscript.exe
74	452	wscript.exe
76	452	wscript.exe
78	452	wscript.exe
81	452	wscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\aTQVxeggsb.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\aTQVxeggsb.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eReceipt.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\aTQVxeggsb.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3W2CQPM6PM = "\"C:\\Users\\Admin\\AppData\\Roaming\\eReceipt.js\""	wscript.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 452 wrote to memory of 4824	452	wscript.exe	83
PID 452 wrote to memory of 4824	452	wscript.exe	83

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\eReceipt.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:452
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\aTQVxeggsb.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:4824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\aTQVxeggsb.js

Filesize
8KB

MD5
4640bf09b44ca4571713b1ecb5178f44

SHA1
99abf89b86d719c9a91af0872f6325862a620fbf

SHA256
f3f74f1914f4d54063e864afe9c93b28a3ac77bf4aa6306e42c0cedd894fc004

SHA512
3b17a47f3bd6bceb57357610f93de1490436bb346c3ac62d1a5bef2d62b6148671aa1bd83e20da33576284a838f7459b205bd87e54d29b04fdf94e24bb371436

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads