vjw0rm | 288f91b613ec105cf8d9576e056b6c504c859c842b3b17649d103308040bd82d

Analysis

max time kernel
142s
max time network
148s
platform
windows7_x64
resource
win7-20220414-en
submitted
20-06-2022 09:40

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General

Target

JUclMnXWGX.js
Size

30KB
MD5

1a78c6c4ea92442d7da8af8d2557e0d2
SHA1

410764bee9220b5630ac46f7a1c5c36c93b742c9
SHA256

288f91b613ec105cf8d9576e056b6c504c859c842b3b17649d103308040bd82d
SHA512

548c4cd49e8277b49d25d2d4b3ba04a29ba474e0ae1761a8edf12643923a6872e8bc448c05b0003c7bcea44cf1847d82ea7ad89874b6657e41055b89e7d4b20d

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

Processes:

wscript.exe

flow	pid	process
4	1984	wscript.exe
5	1984	wscript.exe
6	1984	wscript.exe
8	1984	wscript.exe
10	1984	wscript.exe
11	1984	wscript.exe
13	1984	wscript.exe
14	1984	wscript.exe
15	1984	wscript.exe
17	1984	wscript.exe
18	1984	wscript.exe
19	1984	wscript.exe
21	1984	wscript.exe
22	1984	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

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

Processes:

wscript.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\JUclMnXWGX.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

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:1984

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

Replay Monitor

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Downloads

memory/1984-54-0x000007FEFBFE1000-0x000007FEFBFE3000-memory.dmp

Filesize
8KB

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