vjw0rm | 9d62554799063f4ec1418e23349d3dd4b4d4047cb4ccbb1cbb221d40b6f53c52

Analysis

max time kernel
149s
max time network
150s
platform
windows10_x64
resource
win10-en
submitted
09-09-2021 07:11

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General

Target

PO_2.js
Size

28KB
MD5

3f3198d63db83bc60c004f83498b12f0
SHA1

b0988bc21752a7b54011331cfe46a6f4feac94d5
SHA256

9d62554799063f4ec1418e23349d3dd4b4d4047cb4ccbb1cbb221d40b6f53c52
SHA512

c3ce8428e20acfbc0617c3daf8756a664415aed2f2305b29f9e6992ac9065517d54faead29803f395ad15eb338421b9737642a517c56d775bbf5b0e22e99bd46

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.exewscript.exe

flow	pid	process
8	3264	wscript.exe
9	1208	wscript.exe
17	1208	wscript.exe
19	1208	wscript.exe
20	1208	wscript.exe
21	1208	wscript.exe
22	1208	wscript.exe
23	1208	wscript.exe
24	1208	wscript.exe
25	1208	wscript.exe
26	1208	wscript.exe
27	1208	wscript.exe
28	1208	wscript.exe
29	1208	wscript.exe
30	1208	wscript.exe
31	1208	wscript.exe
32	1208	wscript.exe
33	1208	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\ddNfJQtkil.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ddNfJQtkil.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\\ddNfJQtkil.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 3264 wrote to memory of 1208	3264	wscript.exe	wscript.exe
PID 3264 wrote to memory of 1208	3264	wscript.exe	wscript.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\PO_2.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:3264

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ddNfJQtkil.js"
2⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1208

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

MD5
c3cfe504e21afdb07e267d92cb98fd00

SHA1
19c693828808b30d3113a5d1cf718de4e491db11

SHA256
2116d704374f205d704acfadf3ddb3d488553f01267f692b350e695e134d9c59

SHA512
7db16e0686d65f2cd22c47c5e856d744e9b7c51b513e9adf88f4072f0051279d5b8de221c9ba1c3dbf1f4ccaa255ca240ff61aacf1704e629b9dd6f0c305e76b

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memory/1208-115-0x0000000000000000-mapping.dmp

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