vjw0rm | f98fd2b5cf22ba928eb207f02d2408b3c000c2a8777bfafbc37fef3b649ebd42

Analysis

max time kernel
121s
max time network
135s
platform
windows10_x64
resource
win10-en-20210920
submitted
25-10-2021 12:57

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Paymentcopy.js
Size

3KB
MD5

3448393a1a50e79a9a961d9a13aa2794
SHA1

cf762db80a67730a543956c6a08d98083907e218
SHA256

f98fd2b5cf22ba928eb207f02d2408b3c000c2a8777bfafbc37fef3b649ebd42
SHA512

b1497dda05013a63d6833c3f55b64c72e8d315e15c44deb06b34ec7130751899d49a9d52bbc3581b49ae617b368afeaba348147d6f788a769d1fa7a944bf934c

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://jswormpeople.duckdns.org:1921

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

9 4180 wscript.exe

flow	pid	process
9	4180	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\Paymentcopy.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Paymentcopy.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-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\5HY4A1UC3E = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Paymentcopy.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
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

4412 schtasks.exe

pid	process
4412	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 4180 wrote to memory of 4412	4180	wscript.exe	schtasks.exe
PID 4180 wrote to memory of 4412	4180	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Paymentcopy.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4180

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\Paymentcopy.js
2⤵
- Creates scheduled task(s)
PID:4412

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4412-115-0x0000000000000000-mapping.dmp

Download