vjw0rm | dca9742380d4dfe4f501f1f24e3b856113be1be99a1548e27117cc67bd997fb9

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2024, 15:25

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General

Target

e1fe4fbc351e87183a531bc2263a4d24.js
Size

16KB
MD5

e1fe4fbc351e87183a531bc2263a4d24
SHA1

cca28f37cd27838f83848bd719c5881da1063af7
SHA256

dca9742380d4dfe4f501f1f24e3b856113be1be99a1548e27117cc67bd997fb9
SHA512

5ec3eb28207223cca9c18f667a4ed90b077f21ba1e07c7adf54c69549e178a3131c28dce5ff6a54cdf25952fccfe5466cb9fb87bab4e97dd6246441d7a70dc6e
SSDEEP

384:xZTsZHapjsJXe2pTn1ZmF1qJtOSK6qEt5nYmrk56YjlBeqj3ieKzYF:ENapY9nDmF18tOp6J/EljVj3lRF

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 10 IoCs

flow	pid	Process
8	3528	wscript.exe
35	3528	wscript.exe
46	3528	wscript.exe
65	3528	wscript.exe
78	3528	wscript.exe
82	3528	wscript.exe
84	3528	wscript.exe
91	3528	wscript.exe
93	3528	wscript.exe
97	3528	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-1-5-21-609813121-2907144057-1731107329-1000\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\nopMjEzIbA.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\nopMjEzIbA.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-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\B02N3ZE1UL = "\"C:\\Users\\Admin\\AppData\\Roaming\\nopMjEzIbA.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 2 IoCs

description	pid	Process	procid_target
PID 3528 wrote to memory of 1484	3528	wscript.exe	86
PID 3528 wrote to memory of 1484	3528	wscript.exe	86

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\e1fe4fbc351e87183a531bc2263a4d24.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3528
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\nopMjEzIbA.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:1484

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

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Downloads

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

Filesize
5KB

MD5
264923fdf0bb68453e75ec977797b941

SHA1
3d96a714f8221c5ea2ac915df442c1b22b0732ea

SHA256
d53e232516a9e0b88c8e9f43f6850eb3010f1524c4eb92af501da252746f1d5d

SHA512
73c7c582c22ba0afb4711978d558b685a1c4f4901b1cbbf9b80f88570edf0b537eeaa9354c41a2bc620395d6d254c03e043142ac2e3ca43c9d5104d18eee62f8

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads