vjw0rm | 8f6731af469a59bf034f934876708ac2f9fc17b111a94e0ce750f56d6d927d42

Analysis

max time kernel
128s
max time network
146s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 06:11

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General

Target

9674d32d4f08b3ab045d81a9d64c5e57.jar
Size

125KB
MD5

9674d32d4f08b3ab045d81a9d64c5e57
SHA1

59f7b5a07e7877fe54c1776e4007cfef26f5c050
SHA256

8f6731af469a59bf034f934876708ac2f9fc17b111a94e0ce750f56d6d927d42
SHA512

32702cdfdcd30ee7738749c9fa492cccfef15159bf7d3ed669ce10830700cc761c2a8f8006f13ba64c2892356b716f186a07a4128e4f402c360eb05b90e6dcce
SSDEEP

3072:SjoGR9+qynt/8Ky6nLu8fUvg740E+pJcf+LMb+6B0j:SuabY9Uvkd73cGLY+6B0j

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 created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\LlIVVKFSWA.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\LlIVVKFSWA.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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\B02N3ZE1UL = "\"C:\\Users\\Admin\\AppData\\Roaming\\LlIVVKFSWA.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 9 IoCs

description	pid	Process	procid_target
PID 836 wrote to memory of 2100	836	java.exe	29
PID 836 wrote to memory of 2100	836	java.exe	29
PID 836 wrote to memory of 2100	836	java.exe	29
PID 2100 wrote to memory of 2656	2100	wscript.exe	31
PID 2100 wrote to memory of 2656	2100	wscript.exe	31
PID 2100 wrote to memory of 2656	2100	wscript.exe	31
PID 2100 wrote to memory of 2976	2100	wscript.exe	30
PID 2100 wrote to memory of 2976	2100	wscript.exe	30
PID 2100 wrote to memory of 2976	2100	wscript.exe	30

C:\Windows\system32\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\9674d32d4f08b3ab045d81a9d64c5e57.jar
1⤵
- Suspicious use of WriteProcessMemory
PID:836
- C:\Windows\system32\wscript.exe
  wscript C:\Users\Admin\oefaqnycnu.js
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Program Files\Java\jre7\bin\javaw.exe
    "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\oiqkpcrsvf.txt"
    3⤵
    PID:2976
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\LlIVVKFSWA.js"
    3⤵
    - Drops startup file
    - Adds Run key to start application
    PID:2656

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\LlIVVKFSWA.js

Filesize
5KB

MD5
bf38e508a2c53470c0a1dfa984803e4a

SHA1
0604bb9412bda7cc8c5b33f9912b26b1286c63b2

SHA256
252d415a3f81f40f59bd24621e53795838fade11a98f4714968ab102111e824e

SHA512
c275eb92d075ca2afcb107ee769ca6f51b4a678814bcd108b19f916bdd1c8927619841d972fbaf03e9c41b00eebb9f6209aaed14404cfd110ceff96b9781f2d7

Download Submit
C:\Users\Admin\AppData\Roaming\oiqkpcrsvf.txt

Filesize
64KB

MD5
af5d6e13e10f2a2d0308d7e2814fe426

SHA1
8506ddf95892c5ba55edc71830190eb037dae620

SHA256
ce9678ddb34f13afe4fd25fdde4e9933f66f652f6db88838d7160b0a4f2ef5fb

SHA512
e4bf52305a82f91d7fec701038b6eacba2f116e98c176a096de27438467c2f183f55f4f6714e766c03a40cfa94849517358005fbd718cb8f802b89347a5fc48c

Download Submit
C:\Users\Admin\oefaqnycnu.js

Filesize
191KB

MD5
52d62079da641a43991dc690c6e79fc0

SHA1
315742580e93ed16d06d992ed1778fa9892a2c81

SHA256
30bed001041f49d3c83b99b0453cfc5517f0b9e37c899422fdee6b4674ca8faa

SHA512
81bf2962af957a980ddc1c44e38a80267688281b89862c4f8ad07d534244ccf4becc871e5981e0cfb3d4e92ea9bf684b2381a174ff99ac384e986b4324b3a9fa

Download Submit
memory/836-6-0x0000000002510000-0x0000000005510000-memory.dmp

Filesize
48.0MB

Download
memory/836-12-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2976-29-0x00000000026F0000-0x00000000056F0000-memory.dmp

Filesize
48.0MB

Download
memory/2976-30-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2976-32-0x00000000026F0000-0x00000000056F0000-memory.dmp

Filesize
48.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads