vjw0rm | 4dcdeee1e442d12f58dd818e95c31f562d34546c4d61618f7e6322a8c2b5fa0e

Analysis

max time kernel
144s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 04:59

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General

Target

2921078ffa801cc6b1f03e43ecc21969.js
Size

32KB
MD5

2921078ffa801cc6b1f03e43ecc21969
SHA1

906058e1e1ce4d586426ae1ad70d971f3da83a17
SHA256

4dcdeee1e442d12f58dd818e95c31f562d34546c4d61618f7e6322a8c2b5fa0e
SHA512

92cf75cd46faf4b277145bb5a288aa766ba0154a26a7f2def79b33b758847df2a72d7adec103b358a7ef5b09d6a988327c70729903acef394faeea259d99fa35
SSDEEP

768:At0LO4yXv+UWSPb+C6qHOteIy4KUubJ2J01Zalb8Y03l83:Q06+UWDcOteXAJkZalwU

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Signatures

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

Blocklisted process makes network request 6 IoCs

flow	pid	Process
9	3356	wscript.exe
37	3356	wscript.exe
75	3356	wscript.exe
87	3356	wscript.exe
95	3356	wscript.exe
100	3356	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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\jGYMDjeXbD.js\""	wscript.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 2004	2028	wscript.exe	28
PID 2028 wrote to memory of 2004	2028	wscript.exe	28
PID 2028 wrote to memory of 3356	2028	wscript.exe	25
PID 2028 wrote to memory of 3356	2028	wscript.exe	25

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\2921078ffa801cc6b1f03e43ecc21969.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Local\Temp\TN.vbs"
  2⤵
  - Blocklisted process makes network request
  PID:3356
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\jGYMDjeXbD.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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