vjw0rm | 288f91b613ec105cf8d9576e056b6c504c859c842b3b17649d103308040bd82d

Analysis

max time kernel
144s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
20/06/2022, 09:40

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General

Target
JUclMnXWGX.js
Size 30KB
Sample220620-lm7l4aecd8
SHA256 288f91b613ec105cf8d9576e056b6c504c859c842b3b17649d103308040bd82d
MD5 1a78c6c4ea92442d7da8af8d2557e0d2
SHA1 410764bee9220b5630ac46f7a1c5c36c93b742c9
SHA512 548c4cd49e8277b49d25d2d4b3ba04a29ba474e0ae1761a8edf12643923a6872e8bc448c05b0003c7bcea44cf1847d82ea7ad89874b6657e41055b89e7d4b20d
MD5 SHA1 SHA512

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 14 IoCs

flow	pid	Process
8	932	wscript.exe
15	932	wscript.exe
21	932	wscript.exe
29	932	wscript.exe
31	932	wscript.exe
37	932	wscript.exe
43	932	wscript.exe
44	932	wscript.exe
45	932	wscript.exe
46	932	wscript.exe
47	932	wscript.exe
48	932	wscript.exe
49	932	wscript.exe
50	932	wscript.exe

Drops startup file 2 IoCs

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\JUclMnXWGX.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe

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

System Information Discovery
T1082

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\JUclMnXWGX.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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