vjw0rm | 76d15369afac3929d48b5822fe81c4c39626a59f3dea4120b8b629436b86c11c

Analysis

max time kernel
131s
max time network
135s
platform
windows10_x64
resource
win10-en-20211208
submitted
17-12-2021 17:12

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General

Target

Payment-Comfirmation.js
Size

3KB
MD5

02dca57d9291c141771e24ed47099e99
SHA1

4ceb5dda4962c9d87ea07e536d5fa75dd9138212
SHA256

76d15369afac3929d48b5822fe81c4c39626a59f3dea4120b8b629436b86c11c
SHA512

18f268a7f0f226408444ec73827987fd98736fb7bb77f06b86e2fc47295926ba407fa647ab9d13d055fb2fe5e07a88dc178dfcecff580cf7a32be52c38eafe5f

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://12345h.duckdns.org:3030

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

11 2680 wscript.exe

flow	pid	process
11	2680	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\Payment-Comfirmation.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Payment-Comfirmation.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-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\OU83CU2VL6 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Payment-Comfirmation.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

3292 schtasks.exe

pid	process
3292	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 2680 wrote to memory of 3292	2680	wscript.exe	schtasks.exe
PID 2680 wrote to memory of 3292	2680	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Payment-Comfirmation.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2680

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\Payment-Comfirmation.js
2⤵
- Creates scheduled task(s)
PID:3292

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

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Downloads

memory/3292-118-0x0000000000000000-mapping.dmp

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