vjw0rm | aac9ba1b7dca4d9b37d7da50d65c007eaf0186a8d6563af2dce88949769df5e0

Analysis

max time kernel
141s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
07-04-2023 13:46

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General

Target

Notification of ACH Payment submitted on 06.04.2022.js
Size

7KB
MD5

e7aaf9c2ba37b07ef6fb5095c33a3291
SHA1

1ce3f19e22ce5e5ea5e3aa2f4040a72ffee71c1a
SHA256

aac9ba1b7dca4d9b37d7da50d65c007eaf0186a8d6563af2dce88949769df5e0
SHA512

b18a0f721cab94a670352c2caaf1163d24f2def543cf6770bbb71b308a2c17f1ac958e924200cbd5c1e57c7a6bda23da80347d5073eadea6c75691976ca73247
SSDEEP

192:AnLaaZtNLxXl+iUwLEa9LBONqtrUySocoSggX:AnLZtNTE4OMrSVFX

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Signatures

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

Blocklisted process makes network request 16 IoCs

Processes:

wscript.exe

flow	pid	process
7	3896	wscript.exe
17	3896	wscript.exe
25	3896	wscript.exe
26	3896	wscript.exe
37	3896	wscript.exe
39	3896	wscript.exe
43	3896	wscript.exe
45	3896	wscript.exe
46	3896	wscript.exe
47	3896	wscript.exe
51	3896	wscript.exe
52	3896	wscript.exe
53	3896	wscript.exe
54	3896	wscript.exe
55	3896	wscript.exe
56	3896	wscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	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\Notification of ACH Payment submitted on 06.04.2022.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Notification of ACH Payment submitted on 06.04.2022.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\X54A425I65 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Notification of ACH Payment submitted on 06.04.2022.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

1948 schtasks.exe

pid	process
1948	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 3896 wrote to memory of 1948	3896	wscript.exe	schtasks.exe
PID 3896 wrote to memory of 1948	3896	wscript.exe	schtasks.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Notification of ACH Payment submitted on 06.04.2022.js"
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3896

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\Notification of ACH Payment submitted on 06.04.2022.js
2⤵
- Creates scheduled task(s)
PID:1948

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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