vjw0rm | 7708fbfa03f5eb10ade6b19f0a09af9c9ec4f6353e6be67ab045dca5d2e3b801

Analysis

max time kernel
153s
max time network
153s
platform
windows10_x64
resource
win10-en-20211104
submitted
30-11-2021 06:58

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General

Target

Account sheet .jpg.js
Size

15KB
MD5

df9656ed02964c805f934e28abf9ebee
SHA1

76ab9cc502134c1c9a45d77e43bdb1c8273d43a8
SHA256

7708fbfa03f5eb10ade6b19f0a09af9c9ec4f6353e6be67ab045dca5d2e3b801
SHA512

cd457985dd298de401f0c0d06c4e2cb13c1c4833cbac97e2db9fd038da741b2d77a5566328ef1768a9b728345d8c18924c1f818413d5edc56d5b57386eb63566

Score

10^/10

vjw0rm trojan worm

Malware Config

Extracted

Family

vjw0rm

http://77.247.110.107:7849

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

15 3508 wscript.exe

flow	pid	process
15	3508	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\Account sheet .jpg.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Account sheet .jpg.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
Modifies registry class 1 IoCs

Processes:

wscript.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings wscript.exe
Runs .reg file with regedit 1 IoCs

Processes:

regedit.exe

pid process

4212 regedit.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1042495040-510797905-2613508344-1000_Classes\Local Settings	wscript.exe

pid	process
4212	regedit.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 3508 wrote to memory of 4212	3508	wscript.exe	regedit.exe
PID 3508 wrote to memory of 4212	3508	wscript.exe	regedit.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Account sheet .jpg.js"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3508

C:\Windows\regedit.exe
"regedit.exe" "C:\Users\Admin\AppData\Local\Temp\ebgeaegdbdecaedfebace.reg"
2⤵
- Runs .reg file with regedit
PID:4212

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ebgeaegdbdecaedfebace.reg
MD5
0e5411d7ecba9a435afda71c6c39d8fd

SHA1
2d6812052bf7be1b5e213e1d813ae39faa07284c

SHA256
cb68d50df5817e51ec5b2f72893dc4c749bf3504519107e0a78dda84d55f09e2

SHA512
903ac6e5c8a12607af267b54bcbbedfa5542c5b4f7ea289ab7c6a32a424d5b846ae406d830cb4ad48e2b46f92c504163c0856af8c3e09685a8855f39f616ddb1

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memory/4212-118-0x0000000000000000-mapping.dmp

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