Analysis
- max time kernel
172s - max time network
183s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
22/12/2023, 14:08
General
- Target b8722654a1ef8fcfebf490bce2492392.js
- Size 207KB
- Sample231222-rf3bpafeej
- SHA256 87d6eb8714fe79b95f2f74649cd2fef28e9d57e4c4e990d7ac0f0f6281b978f8
Malware Config
Signatures
- Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 2 IoCs
- Modifies file permissions 1 TTPs 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\b8722654a1ef8fcfebf490bce2492392.js1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\DGjEIUIodz.js"2⤵
- Drops startup file
- Adds Run key to start application
-
-
C:\Program Files\Java\jre-1.8\bin\javaw.exe"C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\figrxjhtf.txt"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\icacls.exeC:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M3⤵
- Modifies file permissions
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
3903daac9bc4a3b7.timestamp
DGjEIUIodz.js
figrxjhtf.txt
memory/4192-72-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-87-0x00000284295B0000-0x00000284295B1000-memory.dmp
memory/4192-29-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-37-0x00000284295B0000-0x00000284295B1000-memory.dmp
memory/4192-38-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-44-0x00000284295B0000-0x00000284295B1000-memory.dmp
memory/4192-45-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-46-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-48-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-63-0x00000284295B0000-0x00000284295B1000-memory.dmp
memory/4192-67-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-15-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-80-0x00000284295B0000-0x00000284295B1000-memory.dmp
memory/4192-19-0x00000284295B0000-0x00000284295B1000-memory.dmp
memory/4192-89-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-94-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-98-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-100-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-101-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-104-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-106-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-132-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-159-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-166-0x00000284295D0000-0x000002842A5D0000-memory.dmp
memory/4192-175-0x00000284295D0000-0x000002842A5D0000-memory.dmp