vjw0rm | e17f108dbdae317833c6a8771493512e0a773b5357c2535e1eba22fca1975477

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 15:32

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General

Target

image006.png.js
Size

209KB
MD5

e6860fcf7fd568970643d88ddc7d87cd
SHA1

fef07c35b5cb90b850f920b222b7cf005c03b199
SHA256

bae95e206861f753435369c3ca6b6c4bc655bd8a6f461c150785b1899766d55b
SHA512

85d9eb5e92a593de8c170a92f1d7d67fdb5ca4bc57b0a865a4a81d626873ae316514293eb77730b0d1a11136c4696adb413f5c071a227aed9f00e048a9b18f8b
SSDEEP

1536:eN9aEj6vR1VsDUkc3YYCMKvyT5uOsrBibF1iCex1B2zwybiLPqirbmuzL/2ybpzA:eN9aZqMt9umRvwZzfDUt

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

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\beVSdOTIld.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\beVSdOTIld.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\image006.png.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\beVSdOTIld.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\G1LWDBN6QR = "\"C:\\Users\\Admin\\AppData\\Roaming\\image006.png.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
2608	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2772	2120	wscript.exe	30
PID 2120 wrote to memory of 2772	2120	wscript.exe	30
PID 2120 wrote to memory of 2772	2120	wscript.exe	30
PID 2120 wrote to memory of 2608	2120	wscript.exe	32
PID 2120 wrote to memory of 2608	2120	wscript.exe	32
PID 2120 wrote to memory of 2608	2120	wscript.exe	32

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\image006.png.js
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\beVSdOTIld.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2772
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\image006.png.js
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2608

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\beVSdOTIld.js

Filesize
73KB

MD5
5a6b6b58ecb6d0c0aac457c6bbbe1b8c

SHA1
f84d217b7404cde7be72d77baa6a68621418d4dd

SHA256
bd34475e672c363420200ca5f8b2c477496bb42d2d1901a8a95c406f05f489de

SHA512
3757be1d0034de1ad63b079a5db0a7918f140a01aaca3748fe51fbd27818171894fde74f117e597afeda7a42b448d6f4642f5bb1716aea6efa95cda57a36dc6c

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads