vjw0rm | 96fffb7a76f1b3c9073d35f35292f987304538e1e8c7b8b234872a47c94aab0d

Analysis

max time kernel
143s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-06-2022 14:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

sYCuOOjDOl_vjstub.js
Size

29KB
MD5

dac9ed798f79a40ef59756c710f61593
SHA1

199bfa38a09181e9396cef4d3b29b0762c5ba987
SHA256

94036cd95dde4d8ec66e76a24755a15ac474c64b12e74ec87d29ff9b8a889160
SHA512

ec5119052e545e0246234b51777bc3a1a3a64ea0c9a3eab98b948896235bd5a49eca1616788636dc09ddd8328382f00b03e5c39139972cff2198667baf5bbcef

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 15 IoCs

Processes:

wscript.exewscript.exe

flow	pid	process
8	3896	wscript.exe
10	1772	wscript.exe
23	1772	wscript.exe
30	1772	wscript.exe
31	3896	wscript.exe
34	1772	wscript.exe
37	1772	wscript.exe
38	3896	wscript.exe
39	1772	wscript.exe
46	1772	wscript.exe
47	3896	wscript.exe
51	1772	wscript.exe
52	1772	wscript.exe
53	3896	wscript.exe
54	1772	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-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation wscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\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\egqENcOXOr.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\egqENcOXOr.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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\egqENcOXOr.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 3896 wrote to memory of 1772	3896	wscript.exe	wscript.exe
PID 3896 wrote to memory of 1772	3896	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\sYCuOOjDOl_vjstub.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3896

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\egqENcOXOr.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1772

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

MD5
dffdb0fc6b534c658575b72bfd4826ae

SHA1
d6cc3039c628b6d9e8a137933fa953e785a9ef0b

SHA256
7e4297ebdde73b716fafb213529d79007e6825b786a471ca7e5a52024fddb939

SHA512
c9f4be68cc09ad027a65745233363940ed7ee7b82ecf919096336ddfec90932ad707ec30089e40f8e2918df2b14f400c96d3d854c0d89ae56897e06e849637ae

Download Submit
memory/1772-130-0x0000000000000000-mapping.dmp

Download