vjw0rm | 05c63cde94e8cf070a1d5fe7e1d14cf4e8f37da01274224dcbe67a136a4f8d77

General

Target

7db6d9cd_4B7HWbADGO.js
Size

225KB
MD5

7db6d9cd3eb60b8e7296921e4d8d959e
SHA1

b2bbea5b2f903c83758d2bb31399addcab9a32ad
SHA256

05c63cde94e8cf070a1d5fe7e1d14cf4e8f37da01274224dcbe67a136a4f8d77
SHA512

c42bf22429f2f84cede85e6bdf93ac15a7cd6498086df302b8559575b2aa95bc88ad1da8e73096bd3f10549c5fc8f75c5bdd25b2d08862a1b3a144130e4fb44f

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 18 IoCs

Processes:

WScript.exe

flow	pid	process
10	1340	WScript.exe
16	1340	WScript.exe
17	1340	WScript.exe
20	1340	WScript.exe
21	1340	WScript.exe
22	1340	WScript.exe
23	1340	WScript.exe
24	1340	WScript.exe
25	1340	WScript.exe
26	1340	WScript.exe
27	1340	WScript.exe
28	1340	WScript.exe
29	1340	WScript.exe
30	1340	WScript.exe
31	1340	WScript.exe
32	1340	WScript.exe
33	1340	WScript.exe
34	1340	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\HjFFOyQEiR.js	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HjFFOyQEiR.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-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Roaming\\HjFFOyQEiR.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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3572 2164 WerFault.exe javaw.exe
Modifies registry class 1 IoCs

Processes:

wscript.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings wscript.exe

pid	pid_target	process	target process
3572	2164	WerFault.exe	javaw.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\Local Settings	wscript.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

WerFault.exe

pid	process
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe
3572	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 3572 WerFault.exe

description	pid	process
Token: SeDebugPrivilege	3572	WerFault.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 3332 wrote to memory of 1340	3332	wscript.exe	WScript.exe
PID 3332 wrote to memory of 1340	3332	wscript.exe	WScript.exe
PID 3332 wrote to memory of 2164	3332	wscript.exe	javaw.exe
PID 3332 wrote to memory of 2164	3332	wscript.exe	javaw.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\7db6d9cd_4B7HWbADGO.js
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3332

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\HjFFOyQEiR.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1340

C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
"C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\srsoudpjwt.txt"
2⤵
PID:2164

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2164 -s 356
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3572

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\HjFFOyQEiR.js

MD5
25308d3faf2814d521f745a11eddb128

SHA1
c43b46b320a9712d7d2122c0815b4c89197658ad

SHA256
e07beb274f63e2a973e5dd8ba08c7898cfd04a878ed9e582783541ae95c863e5

SHA512
4a8cb10e2c453b168f83e5044d893231c245bbb76a9470bed8817d41daabd6c3fb7be8ae704b58850ac1c3e423668579db0faeac4d79ff1473e0adf2c04c7ae4

Download Submit
C:\Users\Admin\AppData\Roaming\srsoudpjwt.txt

MD5
d30db43fa4de3d1c86d88199fd218672

SHA1
f87e903271b69f5dc3dc5b1da84dca781a838247

SHA256
e3c140f5c4fa10ef365115cfa71f73b3a503313cf94068365472bb431e91e7e1

SHA512
ba7a5fb9a375a5e1edaf9821d3de2d466a2649cfc4a690170c0c295b7b98fdad9577427a45f6938a7c4ecd827e7554e70175a36f4dfbeb2f7d25f8d22de707ca

Download Submit
memory/1340-115-0x0000000000000000-mapping.dmp

Download
memory/2164-117-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads