vjw0rm | 16288f415596cee7e80051087859c51cd5f2a44cc0c98b708b78a87f89c0a9ec

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
17-06-2022 15:11

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General

Target

yBzacvcZKX.js
Size

24KB
MD5

9cb94db4ae02bd253f2a41995076f5d2
SHA1

51ff0dc0516a93a8ac5620ccfa4b0e7750ebaeb1
SHA256

16288f415596cee7e80051087859c51cd5f2a44cc0c98b708b78a87f89c0a9ec
SHA512

f3277d959dc34dc4d920261de1cdcf82712982d543b7901f5ddfa7f0a793a33670aa1fec23aa7468ade221e275b02cfa948d3d15aa8fe63a3a011d3363ee4161

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 16 IoCs

Processes:

wscript.exe

flow	pid	process
5	4108	wscript.exe
13	4108	wscript.exe
20	4108	wscript.exe
22	4108	wscript.exe
29	4108	wscript.exe
32	4108	wscript.exe
36	4108	wscript.exe
39	4108	wscript.exe
40	4108	wscript.exe
41	4108	wscript.exe
42	4108	wscript.exe
43	4108	wscript.exe
44	4108	wscript.exe
45	4108	wscript.exe
46	4108	wscript.exe
47	4108	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\yBzacvcZKX.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yBzacvcZKX.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-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\yBzacvcZKX.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\yBzacvcZKX.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:4108

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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