vjw0rm | 1ac5463d860af063a8653ef3bc02c6a0a28d089ded5d759530ebe54e8c1da498

General

Target
C0083_Invoice_Copy.js
Size 12KB
Sample211012-wpbybachc5
SHA256 9af04e365ed1f2e0ea04dc71729f0e3341f0f981405c9f3ddd6d6d7b693fb733
MD5 7db9fe7b332f94b2c50ce2761b40abfc
SHA1 277de0d07f6080d096fe3b2ece7c99ee3167f3ed
SHA512 b735fc8a216ba8833ebaa00d7f67969645f78a572d5c92052de36e5433d0842ed73e481aec3a58484d7a3ee36033fe83cfaa9565b70472b6b9247a4d7d640c1b
MD5 SHA1 SHA512

Score

10^/10

Family

C2

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

Blocklisted process makes network request 3 IoCs

Drops startup file 4 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\C0083_Invoice_Copy.js	cscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\C0083_Invoice_Copy.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\C0083_Invoice_Copy.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\C0083_Invoice_Copy.js	WScript.exe

Adds Run key to start application 2 TTPs 6 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	cscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\JX0T7EQ31M = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\C0083_Invoice_Copy.js\""	cscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\JX0T7EQ31M = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\C0083_Invoice_Copy.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\JX0T7EQ31M = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\C0083_Invoice_Copy.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 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 1812	1268	wscript.exe	31
PID 1268 wrote to memory of 1812	1268	wscript.exe	31
PID 1268 wrote to memory of 1812	1268	wscript.exe	31
PID 1488 wrote to memory of 916	1488	WScript.exe	37
PID 1488 wrote to memory of 916	1488	WScript.exe	37
PID 1488 wrote to memory of 916	1488	WScript.exe	37
PID 1756 wrote to memory of 1392	1756	cscript.exe	41
PID 1756 wrote to memory of 1392	1756	cscript.exe	41
PID 1756 wrote to memory of 1392	1756	cscript.exe	41

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\C0083_Invoice_Copy.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\C0083_Invoice_Copy.js
  2⤵
  - Creates scheduled task(s)
  PID:1812

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\C0083_Invoice_Copy.js"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\C0083_Invoice_Copy.js
  2⤵
  - Creates scheduled task(s)
  PID:916

C:\Windows\system32\cscript.exe
cscript C0083_Invoice_Copy.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\C0083_Invoice_Copy.js
  2⤵
  - Creates scheduled task(s)
  PID:1392