vjw0rm | 69ffc81cf2305ba7dedc79679eb1929dbdbf9e0a4cd6a53193c0367279750b4c

Analysis

max time kernel
151s
max time network
155s
platform
windows7_x64
resource
win7-en-20211208
submitted
08-12-2021 15:48

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General

Target

IwhBHZSsWd.js
Size

66KB
MD5

be3598b9ef31862aa34d1b79014c22de
SHA1

4d102790ec4bb3f6c95dc5097355c5f03c27beaf
SHA256

69ffc81cf2305ba7dedc79679eb1929dbdbf9e0a4cd6a53193c0367279750b4c
SHA512

778ad27bedbe8c275a5abdcba6f9a1ba43d8963ca67bbc768265fe6e5dcd380e1c7a191f7471364f5d6c22b1ba954819574f185141c631b2deca53a3ba6f7c01

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
5	740	wscript.exe
6	740	wscript.exe
7	740	wscript.exe
9	740	wscript.exe
10	740	wscript.exe
11	740	wscript.exe
13	740	wscript.exe
14	740	wscript.exe
15	740	wscript.exe
17	740	wscript.exe
18	740	wscript.exe
19	740	wscript.exe
21	740	wscript.exe
22	740	wscript.exe
23	740	wscript.exe
25	740	wscript.exe
26	740	wscript.exe
27	740	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\IwhBHZSsWd.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IwhBHZSsWd.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-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\SEJOKAOI5S = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\IwhBHZSsWd.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\IwhBHZSsWd.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:740

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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