vjw0rm | 9e08b5396987899e20119e6baa726653c3e03c85772e5f07a71b586338d6e110

General

Target

Detailedzmc.js
Size

31KB
MD5

67fbad40453a19402d1989cfd18c769c
SHA1

a6a7980d2200573fa05bd4d00b3bd73445fad99a
SHA256

9e08b5396987899e20119e6baa726653c3e03c85772e5f07a71b586338d6e110
SHA512

0df4845e96ca72aa227f11215fc7a340eab5dc687954d86d963e5ef3149a7991582b0626aa5657773e7a15ce0898a71b411726eb6ee585a53aa71b301c58472d

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 19 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
8	688	wscript.exe
9	2024	wscript.exe
11	688	wscript.exe
13	688	wscript.exe
16	688	wscript.exe
18	688	wscript.exe
19	688	wscript.exe
22	688	wscript.exe
25	688	wscript.exe
27	688	wscript.exe
30	688	wscript.exe
31	688	wscript.exe
34	688	wscript.exe
36	688	wscript.exe
39	688	wscript.exe
40	688	wscript.exe
43	688	wscript.exe
46	688	wscript.exe
48	688	wscript.exe

Drops startup file 4 IoCs

Processes:

wscript.exewscript.exe

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\uLBxnntOnW.js\""	wscript.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 2024 wrote to memory of 688	2024	wscript.exe	wscript.exe
PID 2024 wrote to memory of 688	2024	wscript.exe	wscript.exe
PID 2024 wrote to memory of 688	2024	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Detailedzmc.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\uLBxnntOnW.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:688

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\uLBxnntOnW.js
MD5
4384461e0d76c05ce635c8ec2e462501

SHA1
c060bc7c9661dc6d43abae5cd3a2ff966cc7716c

SHA256
be21d9aba93c26c4c40c177e7fd3ce5c6b99f89a5e797a9cf030b3e25faa9ac5

SHA512
313ef13aff7176a92e30b5362db402c7f531558b6820c3dd805d6e5f10186b0ddd94c18b835462727c0e9690b096c8ea8fc87ad262e116b30ac83ea9dee9ae62

Download Submit
memory/688-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads