vjw0rm | b312b68d7035ee5e5d0076d2204ad7f7ac1544949413e81466460a056642a9bb

Analysis

max time kernel
139s
max time network
146s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
29-03-2023 10:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50.js
Size

3KB
MD5

b226987db14d44762e9ebefcda95e144
SHA1

d86eac68820c39703e52142d3bf450525a9f8d6c
SHA256

6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50
SHA512

c937e645be893774627bb9849c043f0ce0f9a35b39e843d2489124eaafe650ad55002dc90d1df68e6815950fb8f197a3cee73282eea19b2a701600aaba7775f2

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://ourvjworm.duckdns.org:7974

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

4 2012 wscript.exe

flow	pid	process
4	2012	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\6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50.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-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows\CurrentVersion\Run\GIXH2ANFDJ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50.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
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1188 schtasks.exe

pid	process
1188	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 2012 wrote to memory of 1188	2012	wscript.exe	schtasks.exe
PID 2012 wrote to memory of 1188	2012	wscript.exe	schtasks.exe
PID 2012 wrote to memory of 1188	2012	wscript.exe	schtasks.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2012

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\6de643d185952a9903ab06d382c4373e516329536734d90be309004afaa5ea50.js
2⤵
- Creates scheduled task(s)
PID:1188

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads