vjw0rm | 31f5c289daf8c7fa2c8652f1686e208f6d25784bc9bed2a166c906031e70d449

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 05:06

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General

Target

0f8ef908f483815d049a4c34433b89a0.js
Size

205KB
MD5

0f8ef908f483815d049a4c34433b89a0
SHA1

2179ad62490090265247159dc8fe485c15df971f
SHA256

31f5c289daf8c7fa2c8652f1686e208f6d25784bc9bed2a166c906031e70d449
SHA512

cce76b71dfb9537b3489ed921ccd9e610f43c1c047df44f0a10252f78b6484df7aa0a49eb193ebb11c9c388dffe89901f10a8bcaebfad57824eb102f5a5c7de1
SSDEEP

3072:6Bxt7tTuqdZUBME61Kyv6uh9Gy2B2ajLMQ3bKCnXu0r4uJ93U5Jcbovg:45tJZKMD1Ktuh8ysJHMQ3brnVn9c2F

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Signatures

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

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mtdbwLCheS.js	WScript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mtdbwLCheS.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-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\mtdbwLCheS.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 6 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 2680	1876	wscript.exe	28
PID 1876 wrote to memory of 2680	1876	wscript.exe	28
PID 1876 wrote to memory of 2680	1876	wscript.exe	28
PID 1876 wrote to memory of 2792	1876	wscript.exe	29
PID 1876 wrote to memory of 2792	1876	wscript.exe	29
PID 1876 wrote to memory of 2792	1876	wscript.exe	29

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\0f8ef908f483815d049a4c34433b89a0.js
1⤵
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\mtdbwLCheS.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:2680
- C:\Program Files\Java\jre7\bin\javaw.exe
  "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\mcpqbrhhl.txt"
  2⤵
  PID:2792

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\mcpqbrhhl.txt

Filesize
92KB

MD5
2e458a59025b390fbdf7d3717314b507

SHA1
d5a84f501bfa81682ebde5e31a68794140141785

SHA256
6b723bd260b53c68c716ef218c78718d3e99ab4d4238a4bd823fd0cd6ec8007b

SHA512
2b463bc4ef98264560abad47053549c463fc9ee098c97cd60d58c959ba67f4ddf2ca60856f6564802a9f056740fbedbb6bdc829388c136c13b334563465d1f22

Download Submit
C:\Users\Admin\AppData\Roaming\mtdbwLCheS.js

Filesize
10KB

MD5
3b69300c20db18e2d4ac0cf12d54dd6f

SHA1
326fa9803bede447183b84699e07ab6061796923

SHA256
92740ff3dd79b56800fbefc0963f3cda86855445d2e2e7250d362bf9ca91ddca

SHA512
8f331d7d3540a2e3b7a63a8f12e331b9a1ca210bd22b61d4318d5e4556d1f242dfe350e613b467d80fb69de2dd2354c06e9b9fdddb3d2fe48c4117312607c159

Download Submit
memory/2792-10-0x00000000022F0000-0x00000000052F0000-memory.dmp

Filesize
48.0MB

Download
memory/2792-17-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2792-24-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2792-29-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2792-31-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2792-32-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2792-34-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2792-35-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2792-36-0x00000000022F0000-0x00000000052F0000-memory.dmp

Filesize
48.0MB

Download
memory/2792-37-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2792-41-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2792-43-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2792-79-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2792-86-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads