vjw0rm | d0a3dc9322f9f6f9028f437d45757560de849fd0a0a6dcf8c92beed012b61e0d

Analysis

max time kernel
147s
max time network
181s
platform
windows7_x64
resource
win7v20210408
submitted
24-08-2021 17:57

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General

Target

ruYArSxXtj.js
Size

9KB
MD5

ca4e11b0bbf70a587e0d653bfceded8c
SHA1

c70eeac3273988740e937e21e11948b003295582
SHA256

d0a3dc9322f9f6f9028f437d45757560de849fd0a0a6dcf8c92beed012b61e0d
SHA512

291bbeb73d3ecacfe5c50aa9fd59f0542eea4950a82d0def79318017d5a0c9bcd3792a49c17309414c7678235ffeae284f29643e2be4b4a368592c0f5f64bdf0

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
7	1652	wscript.exe
8	1652	wscript.exe
9	1652	wscript.exe
11	1652	wscript.exe
12	1652	wscript.exe
13	1652	wscript.exe
15	1652	wscript.exe
16	1652	wscript.exe
17	1652	wscript.exe
19	1652	wscript.exe
20	1652	wscript.exe
21	1652	wscript.exe
23	1652	wscript.exe
24	1652	wscript.exe
25	1652	wscript.exe
27	1652	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\ruYArSxXtj.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ruYArSxXtj.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
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\ruYArSxXtj.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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\ruYArSxXtj.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1652

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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