vjw0rm | 15993026ade985e2d41f8f8d6d60179901f2d5be4515870c1c4030f78466dbb0

Analysis

max time kernel
135s
max time network
143s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
23-03-2023 14:26

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General

Target

$RECYCLE.BIN/$R4FIL8H.js
Size

9.0MB
MD5

5d97ab7f843e6c18b96c4e34bd65ff09
SHA1

9ad9f18b92f57a3e1536a552dc3e4081b34169e2
SHA256

eb841738aeb5f98695da31d3ebe1bf241f8411283373fd6e99788fc52903b1be
SHA512

116897043738962c9e059d4701e01b3f36987100a00951ef020c2481dc100a3a59eaf106e5c96b042019dceb53b3a143454c6aaa861262bf2d24c45651699e81
SSDEEP

96:kZH1uyAXIXGou2lcJc9l2JEuft2v2wz2zadZxOBeFcr3vVkcZBIKkcZBe4KcZUCS:kZVhpngJpG2wz2xkFm3vVEKZpFEm

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

4 1740 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\$R4FIL8H.js wscript.exe

flow	pid	process
4	1740	wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\$R4FIL8H.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-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Windows\CurrentVersion\Run\0YME0MQN5Y = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\$R4FIL8H.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\$R4FIL8H.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1740

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

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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