vjw0rm | a707c0a69369c8e2d991f4e4b77ca59342deb8bfa37dd5c7138e823f20e983df

Analysis

max time kernel
140s
max time network
143s
platform
windows7_x64
resource
win7-en-20211208
submitted
09-12-2021 16:00

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General

Target

QAWSJPO267KJSHBNM.js
Size

9KB
MD5

56949c45eb88b2185504e875a3988dce
SHA1

354e71c9a2da8d31899baeea3dd264a74ae8ecf7
SHA256

a707c0a69369c8e2d991f4e4b77ca59342deb8bfa37dd5c7138e823f20e983df
SHA512

37df4d73d9ebeb300dfbe6427ea763e1597236c4b9f4081718b8553366a52a8e8066de3bcbdc8924984510c3755cc9df855000a80051e1648cbae28f7b0e50c0

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://wormmondg.duckdns.org:9034

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

5 1320 wscript.exe

flow	pid	process
5	1320	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\QAWSJPO267KJSHBNM.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\QAWSJPO267KJSHBNM.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-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\IKTNUESVGM = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\QAWSJPO267KJSHBNM.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\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
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

648 schtasks.exe

pid	process
648	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 1320 wrote to memory of 648	1320	wscript.exe	schtasks.exe
PID 1320 wrote to memory of 648	1320	wscript.exe	schtasks.exe
PID 1320 wrote to memory of 648	1320	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\QAWSJPO267KJSHBNM.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\QAWSJPO267KJSHBNM.js
  2⤵
  - Creates scheduled task(s)
  PID:648

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/648-55-0x0000000000000000-mapping.dmp

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