vjw0rm | 986a95a00339276c26cb9a6ed50fba01e5c40e3cb0201c1c03aae14002a564a2

Analysis

max time kernel
134s
max time network
144s
platform
windows7_x64
resource
win7-en-20210920
submitted
26-10-2021 19:36

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General

Target

g1m3_Payment_receipt.js
Size

81KB
MD5

227c97971e3a533da777df3558817c33
SHA1

20e0339535e0c0ca20830a7929dd85c0648c5c11
SHA256

986a95a00339276c26cb9a6ed50fba01e5c40e3cb0201c1c03aae14002a564a2
SHA512

a10d0f9d79bb9eefbdc410086d62c9e59b2dd06ec140820c207c8c4b1cde594eccc28a4736d0d3b13b750b269d3ee14ee6c41240ddde917d1af934eba110cce7

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://6200js.duckdns.org:6200

Signatures

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Blocklisted process makes network request 7 IoCs

Processes:

wscript.exe

flow pid process

5 368 wscript.exe
7 368 wscript.exe
9 368 wscript.exe
11 368 wscript.exe
13 368 wscript.exe
15 368 wscript.exe
17 368 wscript.exe

flow	pid	process
5	368	wscript.exe
7	368	wscript.exe
9	368	wscript.exe
11	368	wscript.exe
13	368	wscript.exe
15	368	wscript.exe
17	368	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\g1m3_Payment_receipt.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\g1m3_Payment_receipt.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\BB4HJP0E1C = "'C:\\Users\\Admin\\AppData\\Local\\Temp\\g1m3_Payment_receipt.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

1180 schtasks.exe

pid	process
1180	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

wscript.exe

description	pid	process	target process
PID 368 wrote to memory of 1180	368	wscript.exe	schtasks.exe
PID 368 wrote to memory of 1180	368	wscript.exe	schtasks.exe
PID 368 wrote to memory of 1180	368	wscript.exe	schtasks.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\g1m3_Payment_receipt.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:368

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr 'C:\Users\Admin\AppData\Local\Temp\g1m3_Payment_receipt.js
2⤵
- Creates scheduled task(s)
PID:1180

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/368-54-0x000007FEFBA11000-0x000007FEFBA13000-memory.dmp

Filesize
8KB

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memory/1180-55-0x0000000000000000-mapping.dmp

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