vjw0rm | c91648938802dd0eedab541034cdcf662e36e25a6de5d1684585bac0016c7f3b

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-12-2024 17:07

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General

Target

2a830c7923253031907c1dd34c4a9532c1f53e8fe7f6a3c8359a0e93ef4b216e.js
Size

27KB
MD5

511f6a9de220c99adf7e2e03a4e48886
SHA1

7e3c217e99f7bdd44c2e760feaf413cb3a7736fb
SHA256

2a830c7923253031907c1dd34c4a9532c1f53e8fe7f6a3c8359a0e93ef4b216e
SHA512

8fe6e672872a208e9cac950856c1afa4cdb7fc496cc67531a98322fed1f1b83b1b7b5ce7f5a702b56197c853f0bf09deb5e1958b4369ca01cb42c401fdb4c090
SSDEEP

768:BIa7X/aqtEJfke022Fb+wGcrLQfpds+TbGKRRcpX:qabledke0HFbpGoLQfs+TbGORcpX

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

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-1-5-21-3350944739-639801879-157714471-1000\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\PhOPzJgSgd.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PhOPzJgSgd.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2a830c7923253031907c1dd34c4a9532c1f53e8fe7f6a3c8359a0e93ef4b216e.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0HKX5ALWLG = "\"C:\\Users\\Admin\\AppData\\Roaming\\PhOPzJgSgd.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3XFVC1CQKY = "\"C:\\Users\\Admin\\AppData\\Roaming\\2a830c7923253031907c1dd34c4a9532c1f53e8fe7f6a3c8359a0e93ef4b216e.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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4152	schtasks.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3396 wrote to memory of 3436	3396	wscript.exe	83
PID 3396 wrote to memory of 3436	3396	wscript.exe	83
PID 3396 wrote to memory of 4152	3396	wscript.exe	85
PID 3396 wrote to memory of 4152	3396	wscript.exe	85

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\2a830c7923253031907c1dd34c4a9532c1f53e8fe7f6a3c8359a0e93ef4b216e.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3396
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\PhOPzJgSgd.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:3436
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\2a830c7923253031907c1dd34c4a9532c1f53e8fe7f6a3c8359a0e93ef4b216e.js
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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\PhOPzJgSgd.js

Filesize
8KB

MD5
398ea7fcde0fe6de66a488b8d0df37b3

SHA1
847de03f765f337624423386aa124e0910c22883

SHA256
9bfbb43d7401e73169d525c90feb26e4d968a301cb7f6045535c8025f780d731

SHA512
bc9a0491ea5c9f5aadb63e7a8811acebca4afeb9c1d76db985d2c7732c36ffe7e1fbb0cff970cabf51bc20db752cef847712b4147e8d0480014d1f7d3bb08111

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads