vjw0rm | 34d8e5b4d562e391ef5aa0e06738593ea6d1f28710bf3d8c091ac706614cc2f2

General

Target

File 1.js
Size

29KB
MD5

5b249001231021d53f6e80d07e4e5f5b
SHA1

1266796493db1d6e635684d96c61c92a4f7dc93e
SHA256

34d8e5b4d562e391ef5aa0e06738593ea6d1f28710bf3d8c091ac706614cc2f2
SHA512

d8200f7ac947d92493e17284bc249230181e1dc1bf4192da3b33e37e05faed356dd4dc6bda234128db75a866ccce67c28b5cc3beef4a19b001dab8c4faa7c29f

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

C2

http://104.168.7.110:7974

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 16 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
5	3256	wscript.exe
7	3404	wscript.exe
14	3404	wscript.exe
22	3404	wscript.exe
32	3404	wscript.exe
33	3404	wscript.exe
36	3404	wscript.exe
37	3404	wscript.exe
40	3404	wscript.exe
41	3404	wscript.exe
44	3404	wscript.exe
45	3404	wscript.exe
46	3404	wscript.exe
47	3404	wscript.exe
48	3404	wscript.exe
49	3404	wscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	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\AoKCPOUwzd.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AoKCPOUwzd.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-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\AoKCPOUwzd.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 3256 wrote to memory of 3404	3256	wscript.exe	wscript.exe
PID 3256 wrote to memory of 3404	3256	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\File 1.js"
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3256

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\AoKCPOUwzd.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:3404

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\AoKCPOUwzd.js
Filesize
10KB

MD5
06857086cf6f496de378970a7e5176e3

SHA1
a9e42c3d319914af6965e4ecf2fc20f69e0d7b9b

SHA256
00f358e945dd63c7084ec39a494a992ee74c381ba5f14181dec44a6a2e60f6da

SHA512
94179fc54083f63ef49af7cd44566f3edd0a524d68f8343630fc3974bf80bbd0957910feea14ee8e08de36c91d5998c1543ed023f0d47262c3f128af2d9a22b7

Download Submit
memory/3404-130-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads