vjw0rm | 3dc741895be0ad6dd1f03d38488bbdf1d5f48517cb51de782639c4036c46d128

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-en-20211208
submitted
25-01-2022 15:12

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General

Target

RY003.js
Size

14KB
MD5

d8f874bd74588107bfd3f3acc68991d8
SHA1

5ac811daadc0c9f7bd0b0fc53fe03f17585dc1c4
SHA256

3dc741895be0ad6dd1f03d38488bbdf1d5f48517cb51de782639c4036c46d128
SHA512

8e8027a0cd90ddf18db59946f4786d651b300bae29a0494ecf0e4b56910d92feab1ac9f38f687d793e5fa54ee00fedcdfae2d1655d96f5845605984e9b0714e4

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://moneyworm6.duckdns.org:1996

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

5 844 wscript.exe

flow	pid	process
5	844	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\RY003.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RY003.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-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\BVQOUV4OK4 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\RY003.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

852 schtasks.exe

pid	process
852	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 844 wrote to memory of 852	844	wscript.exe	schtasks.exe
PID 844 wrote to memory of 852	844	wscript.exe	schtasks.exe
PID 844 wrote to memory of 852	844	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\RY003.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:844

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\RY003.js
2⤵
- Creates scheduled task(s)
PID:852

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/844-61-0x000007FEFBC11000-0x000007FEFBC13000-memory.dmp

Filesize
8KB

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