vjw0rm | 0d25ce06db15caf3281a0775da2d5b397b28c73dcde1edf6d33db66aebced6ae

Analysis

max time kernel
137s
max time network
146s
platform
windows7_x64
resource
win7-en-20211014
submitted
29-11-2021 19:58

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General

Target

Accounts and ballance sheet.js
Size

15KB
MD5

9ac803588c9ddeb2a51428af8907aa93
SHA1

87d12029311274b429087ccd9af0972ea6cb4ccd
SHA256

0d25ce06db15caf3281a0775da2d5b397b28c73dcde1edf6d33db66aebced6ae
SHA512

1ed5ff0dfd8c3f1d9d7b75ba07a65cda46af74105337d4704306967d0be30b9557f517f60fdda22b5dd9ed55c85ed7c70a556a0f9cb70effb7560803a4f786c0

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 6 IoCs

Processes:

wscript.exe

flow pid process

4 840 wscript.exe
5 840 wscript.exe
6 840 wscript.exe
7 840 wscript.exe
8 840 wscript.exe
9 840 wscript.exe

flow	pid	process
4	840	wscript.exe
5	840	wscript.exe
6	840	wscript.exe
7	840	wscript.exe
8	840	wscript.exe
9	840	wscript.exe

Drops startup file 1 IoCs

Processes:

wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Accounts and ballance sheet.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-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\OLXYMEWHIE = "\"C:\\Users\\Admin\\AppData\\Local\\Accounts and ballance sheet.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
Runs .reg file with regedit 1 IoCs

Processes:

regedit.exe

pid process

636 regedit.exe

pid	process
636	regedit.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 840 wrote to memory of 636	840	wscript.exe	regedit.exe
PID 840 wrote to memory of 636	840	wscript.exe	regedit.exe
PID 840 wrote to memory of 636	840	wscript.exe	regedit.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Accounts and ballance sheet.js"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:840

C:\Windows\regedit.exe
"regedit.exe" "C:\Users\Admin\AppData\Local\Temp\ebgeaegdbdecaedfebace.reg"
2⤵
- Runs .reg file with regedit
PID:636

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ebgeaegdbdecaedfebace.reg

MD5
0e5411d7ecba9a435afda71c6c39d8fd

SHA1
2d6812052bf7be1b5e213e1d813ae39faa07284c

SHA256
cb68d50df5817e51ec5b2f72893dc4c749bf3504519107e0a78dda84d55f09e2

SHA512
903ac6e5c8a12607af267b54bcbbedfa5542c5b4f7ea289ab7c6a32a424d5b846ae406d830cb4ad48e2b46f92c504163c0856af8c3e09685a8855f39f616ddb1

Download Submit
memory/636-56-0x0000000000000000-mapping.dmp

Download
memory/636-58-0x0000000001B40000-0x0000000001B41000-memory.dmp

Filesize
4KB

Download
memory/840-55-0x000007FEFC061000-0x000007FEFC063000-memory.dmp

Filesize
8KB

Download