vjw0rm | 9f3cce73e846d61935128bfbd96014818b9be2d800d3fb13d5649f5eec38df1b

Analysis

max time kernel
147s
max time network
158s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29-12-2023 22:03

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General

Target

0518c4dcdd42ff9853e7698488b73128.js
Size

26KB
MD5

0518c4dcdd42ff9853e7698488b73128
SHA1

2207755fb06fae33421089558f89e93912dbe041
SHA256

9f3cce73e846d61935128bfbd96014818b9be2d800d3fb13d5649f5eec38df1b
SHA512

0d0457f52dedd5c3b24e7d7c0700562c4df3e8a260f96d5e83890a8008a33c3ee00f392697f10fcab5c0c3599dd247042d6713bafd94653cce4ab9165b59e31d
SSDEEP

384:T0iyJOi+E35ZJrsI5soHagEE2rwsxDMDxZhxnQVwE/mlSOm8ZY/5aRKV320:CdfaGs3gEE2FsZ/QAcV320

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
5	2384	wscript.exe
9	2384	wscript.exe
12	2384	wscript.exe
15	2384	wscript.exe
18	2384	wscript.exe
21	2384	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BzcPYMcTBP.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BzcPYMcTBP.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-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\BzcPYMcTBP.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 3 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2500	2384	wscript.exe	28
PID 2384 wrote to memory of 2500	2384	wscript.exe	28
PID 2384 wrote to memory of 2500	2384	wscript.exe	28

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\0518c4dcdd42ff9853e7698488b73128.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\BzcPYMcTBP.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2500

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
9KB

MD5
859e2baede14ce52a245894fb546b02b

SHA1
05a23854492ef59f0c704c9c8c677ab1eda554e5

SHA256
57bd7852e743f0de266aeaee04a94b1bd4fdd16f49355c1959f7a4ccaa7f5606

SHA512
29b426ec5279616cfb2777881989e7435a59bb26aca8406a856996e92ca8790a1dd66562a01720dab91b61c17d9dc9b156f07c82a8feb84f6fccda8bb1450a5e

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads