vjw0rm | b302998fc5e3ff4a61d22f5c35ea5e168e040d10bc8437cf8c190bfc27e63dd0

General

Target

extracted.js
Size

18KB
MD5

1d9327d69fd263ac645b6a4eef31cb24
SHA1

3cff6c8d464e8c254048635dd68e31225ffcb6e4
SHA256

b302998fc5e3ff4a61d22f5c35ea5e168e040d10bc8437cf8c190bfc27e63dd0
SHA512

50cf6ff55a3f73803b4b1313c029e08e66e62ff6de1fd839fec21aecc09d30254616a3b8aab271828a7a69f4835d155ee4af53bb3c4daaa3b4a1cb2305409e2f

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 19 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
8	1464	wscript.exe
9	2028	wscript.exe
11	1464	wscript.exe
13	1464	wscript.exe
15	1464	wscript.exe
17	1464	wscript.exe
19	1464	wscript.exe
22	1464	wscript.exe
25	1464	wscript.exe
27	1464	wscript.exe
29	1464	wscript.exe
32	1464	wscript.exe
34	1464	wscript.exe
36	1464	wscript.exe
39	1464	wscript.exe
41	1464	wscript.exe
43	1464	wscript.exe
46	1464	wscript.exe
48	1464	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\amqolYPJMq.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\amqolYPJMq.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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\amqolYPJMq.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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 2028 wrote to memory of 1464	2028	wscript.exe	wscript.exe
PID 2028 wrote to memory of 1464	2028	wscript.exe	wscript.exe
PID 2028 wrote to memory of 1464	2028	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\extracted.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\amqolYPJMq.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1464

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\amqolYPJMq.js
MD5
3f7b92769fc59d8adc125b4d4e8adee4

SHA1
b3ea6913dcf3681572a1db1f429cc5e1e49b060e

SHA256
e1fccde6528046c2c1e41096085c199efaddc1393d42f6696165aeec43c9a209

SHA512
659caad97e885af9d5f2dece465873b517fc34a5c67f5f0aba08b9ef868cca57fe025ed9979bd0933e46ee45792d5b424bd99a24c4449c5b739f17e0b6bdf01f

Download Submit
memory/1464-61-0x0000000000000000-mapping.dmp

Download
memory/2028-60-0x000007FEFC411000-0x000007FEFC413000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads