vjw0rm | 524c411868be9769efa1197add86395053157040e26310efa2648c4b0f8bc50d

Analysis

max time kernel
151s
max time network
149s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
08-02-2023 14:45

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General

Target

1ZWAJSAR001.js
Size

300.0MB
MD5

16f64a9f1e8298c60d410e649d4f9af6
SHA1

4ecbd826dd26c8cb1c83e90b260fabc01fb292b3
SHA256

07832ced9085948c808f5d084569f19e7ac6d7ac033d9fe307557b2d62276c43
SHA512

99bf973c22c46827ab153f13365cdffeb47a15f300693f5cbf3faaff71a7043e5a7a1c083c2ce2b02cfb085ba3bd77c8c43f6d0fbbfb9cab74e990318f8cde2b
SSDEEP

192:KERPOQ5/EwSCSgCoR57ATri9xKrw/SDLaMTiye22k8T4Z1FOJ0ow4:KsOA/EwO4lT9xKrw6DLaM5iTTXaE

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://sgdghhdh62.duckdns.org:8050

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	1404	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1ZWAJSAR001.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1ZWAJSAR001.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\TLMDOPHRA6 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\1ZWAJSAR001.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

pid	Process
848	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1404 wrote to memory of 848	1404	wscript.exe	29
PID 1404 wrote to memory of 848	1404	wscript.exe	29
PID 1404 wrote to memory of 848	1404	wscript.exe	29

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\1ZWAJSAR001.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1404
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\1ZWAJSAR001.js
  2⤵
  - Creates scheduled task(s)
  PID:848

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

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Downloads

memory/1404-54-0x000007FEFB8A1000-0x000007FEFB8A3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads