vjw0rm | dff140d494fb80e82a23e29b374abc733ed9b62525fdca0341fdbb121290dca6

Analysis

max time kernel
151s
max time network
165s
platform
windows10_x64
resource
win10v20210408
submitted
30-08-2021 06:14

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

MtBJlv_GM.js
Size

26KB
MD5

e9a08df4b85e99b01a9c145e9af3964d
SHA1

e498d70a9b568d7a66d661c91e9ed2db52d442df
SHA256

dff140d494fb80e82a23e29b374abc733ed9b62525fdca0341fdbb121290dca6
SHA512

a2e2bfc777e80770444554866fc29df5ce307974bc842de43d40ab1b536d0be1398eff97ba2d6bc73c59966b86570ebc3c4ce85d1f6430c2a32c4110b2e73283

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 17 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
8	3728	wscript.exe
10	1600	wscript.exe
15	1600	wscript.exe
18	1600	wscript.exe
19	1600	wscript.exe
20	1600	wscript.exe
21	1600	wscript.exe
22	1600	wscript.exe
23	1600	wscript.exe
24	1600	wscript.exe
25	1600	wscript.exe
26	1600	wscript.exe
27	1600	wscript.exe
28	1600	wscript.exe
29	1600	wscript.exe
30	1600	wscript.exe
31	1600	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\yBqkfOVwNP.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yBqkfOVwNP.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-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\yBqkfOVwNP.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 2 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 3728 wrote to memory of 1600	3728	wscript.exe	wscript.exe
PID 3728 wrote to memory of 1600	3728	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\MtBJlv_GM.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:3728

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\yBqkfOVwNP.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1600

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\yBqkfOVwNP.js
MD5
57111779ec54af1803d5013520a6b104

SHA1
822be87e2f4dbc2ccf178141bd95d916b90f8dfd

SHA256
7c61705381b479cfe63d85a7eae012b4bfc5825d01b1d7c2366277d3ed5c880f

SHA512
6d4db62c75d8bbfa4de93633c3216538bf5bf611323c03693744ae410919a18d6e3096b7f4270eee1727931603978c1b02390d3a82d10d19fbf8787bc158cf30

Download Submit
memory/1600-114-0x0000000000000000-mapping.dmp

Download