vjw0rm | 16288f415596cee7e80051087859c51cd5f2a44cc0c98b708b78a87f89c0a9ec

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20220414-en
submitted
17-06-2022 15:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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
4	1864	wscript.exe
5	1864	wscript.exe
6	1864	wscript.exe
8	1864	wscript.exe
10	1864	wscript.exe
11	1864	wscript.exe
13	1864	wscript.exe
14	1864	wscript.exe
15	1864	wscript.exe
17	1864	wscript.exe
18	1864	wscript.exe
19	1864	wscript.exe
21	1864	wscript.exe
22	1864	wscript.exe
23	1864	wscript.exe
25	1864	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yBzacvcZKX.js	wscript.exe
File created	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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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:1864

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

Loading Replay Monitor...

Downloads

memory/1864-54-0x000007FEFBF91000-0x000007FEFBF93000-memory.dmp

Filesize
8KB

Download