vjw0rm | bbceba6fd06b01bd5c69ccab1ea106189455e1e85e577e278f9f362940b5442c

Analysis

max time kernel
141s
max time network
145s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04-04-2024 07:41

Target

b2931677748da184be75854369749dc9_JaffaCakes118.js
Size

11KB
MD5

b2931677748da184be75854369749dc9
SHA1

1dd339c87a703195ed29ab84792e30611a9917e6
SHA256

bbceba6fd06b01bd5c69ccab1ea106189455e1e85e577e278f9f362940b5442c
SHA512

0c8399e08da2194700ac5d2729b35abcb4c2642a4825ba46968ee1c8c21071f68c21b99297638d543440e3bf854cfc17d0ec390716a2fb2bcd9961611bd3c894
SSDEEP

192:lGOZvPPzzDhmu9bQx/vdfEXcWBAQcpdOAqER/VkB1UxYSeXVW1EU:BZlmu9cx/VErBxqdOAxa2aSREU

Score

10^/10

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

Blocklisted process makes network request 6 IoCs

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b2931677748da184be75854369749dc9_JaffaCakes118.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b2931677748da184be75854369749dc9_JaffaCakes118.js	wscript.exe

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\6ID7YY2BDP = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\b2931677748da184be75854369749dc9_JaffaCakes118.js\""	wscript.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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.

Scheduled Task/Job

pid	Process
2676	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 2676	2728	wscript.exe	29
PID 2728 wrote to memory of 2676	2728	wscript.exe	29
PID 2728 wrote to memory of 2676	2728	wscript.exe	29

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\b2931677748da184be75854369749dc9_JaffaCakes118.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\b2931677748da184be75854369749dc9_JaffaCakes118.js
  2⤵
  - Creates scheduled task(s)
  PID:2676