vjw0rm | bdd8a1389c36a9be565f526e3c590b4c4eabbc946b8d25d6791e334aa090ffed

Analysis

max time kernel
106s
max time network
110s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
20-10-2022 10:21

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General

Target

wynwormi (1).js
Size

6KB
MD5

c02658d3892d92f451f860901be1ff6e
SHA1

68364e2a981abc87db70afd28c9b70d83c4f25fb
SHA256

bdd8a1389c36a9be565f526e3c590b4c4eabbc946b8d25d6791e334aa090ffed
SHA512

87373410957f63273f21d867d5572119912cadf0f0114bfe2b840fa5eaf7b209f4f38b3032c65a7f031e3cdf93e0ce02017809c6c7e213620f44b474dce98f97
SSDEEP

192:zkiLVbdiHOTZ81U/MBAMzeEC1qOZow5mP8ZMjQaQq59u2PwMpSA20o3UPCv+KXr5:TIIqkosXr4+LSh9fFHvfBE

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://45.139.105.174:6605

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Blocklisted process makes network request 2 IoCs

flow	pid	Process
3	860	wscript.exe
4	860	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wynwormi (1).js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\wynwormi (1).js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\YQUCHB7BKJ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\wynwormi (1).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\wynwormi (1).js"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:860

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

memory/860-54-0x000007FEFB741000-0x000007FEFB743000-memory.dmp

Filesize
8KB

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