vjw0rm | b1c0b2b8c165b4144be04ac5138af82825f61f4928a4ddf8b9db44f3a2ba1e0d

Analysis

max time kernel
108s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
24-02-2023 14:27

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General

Target

$RECYCLE.BIN/$RMH8R2U.js
Size

97KB
MD5

7aab68aeb388528f9e3448ea0dce56d7
SHA1

07d648c7247e2db064b7ba1b1b21722c475e3396
SHA256

610eb77c6ef6c0767a1b8d0157b39ea5105697ffdf31d2afa5963e4da8cd0cb8
SHA512

1f59fd8a717ff3bf9f57452440a6e08907cd9c32050aa399ab0a591c6109486410e74d21d5ee41355b4b041f4dd88c679d8077b611cfaea9c597aaa67ed0e8b4
SSDEEP

384:chWz5Kfy24jHueR45qWWxWBWHKSqmqR4G:OYG

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://js9400.duckdns.org:9400

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

10 4776 wscript.exe
Drops startup file 1 IoCs

Processes:

wscript.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\$RMH8R2U.js wscript.exe

flow	pid	process
10	4776	wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\$RMH8R2U.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-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0YME0MQN5Y = "'C:\\Users\\Admin\\AppData\\Local\\Temp\\$RMH8R2U.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\$RECYCLE.BIN\$RMH8R2U.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:4776

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

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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