vjw0rm | c346c5553d730a5f500588c0cb604454019e0a9a8c234b09e3050de08c5c4de9

Analysis

max time kernel
149s
max time network
147s
platform
windows7_x64
resource
win7-en-20210920
submitted
04-10-2021 20:51

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General

Target

eohMqhWkvF.js
Size

10KB
MD5

bd854a8caf7e7c7755481169afebeb9d
SHA1

46d81477627836bdda15137a8837d10eb84bbbfc
SHA256

c346c5553d730a5f500588c0cb604454019e0a9a8c234b09e3050de08c5c4de9
SHA512

5d311fdf3958f117d5b06cb4e975a7bd373a1b9e8379e2df133472bcd30dca710afd382b848bffaf3899cfa1e887f0fe74f019878a24c326a081d15afa73e3e5

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
4	1740	wscript.exe
5	1740	wscript.exe
7	1740	wscript.exe
9	1740	wscript.exe
10	1740	wscript.exe
11	1740	wscript.exe
13	1740	wscript.exe
14	1740	wscript.exe
15	1740	wscript.exe
17	1740	wscript.exe
18	1740	wscript.exe
19	1740	wscript.exe
21	1740	wscript.exe
22	1740	wscript.exe
23	1740	wscript.exe
25	1740	wscript.exe
26	1740	wscript.exe
27	1740	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\eohMqhWkvF.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eohMqhWkvF.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-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\eohMqhWkvF.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

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\eohMqhWkvF.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1740

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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