Analysis
- max time kernel
151s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
22/12/2023, 12:24
General
- Target 8bd61c883e9ffc637c7dd0bf7ab93d6b.exe
- Size 696KB
- Sample231222-pk72maabar
- SHA256 60f4de6a343a174eebb2455834b4333103d0159b5a975f793e98b91bcc96594a
Score
10/10
Malware Config
Signatures
- CryptoLocker
Ransomware family with multiple variants.
- Deletes itself 1 IoCs
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8bd61c883e9ffc637c7dd0bf7ab93d6b.exe"C:\Users\Admin\AppData\Local\Temp\8bd61c883e9ffc637c7dd0bf7ab93d6b.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Avywuixyxmexxtr.exe"C:\Users\Admin\AppData\Local\Avywuixyxmexxtr.exe" "-rC:\Users\Admin\AppData\Local\Temp\8bd61c883e9ffc637c7dd0bf7ab93d6b.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Avywuixyxmexxtr.exe"C:\Users\Admin\AppData\Local\Avywuixyxmexxtr.exe" -w26c3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Avywuixyxmexxtr.exe
memory/836-11-0x0000000000400000-0x00000000004D5000-memory.dmp
memory/836-12-0x0000000000400000-0x00000000004D5000-memory.dmp
memory/836-19-0x0000000000400000-0x00000000004D5000-memory.dmp
memory/836-21-0x0000000000400000-0x00000000004D5000-memory.dmp
memory/836-23-0x0000000000550000-0x0000000000551000-memory.dmp
memory/1700-0-0x0000000000400000-0x00000000004D5000-memory.dmp
memory/1700-1-0x0000000000610000-0x0000000000611000-memory.dmp
memory/1700-2-0x0000000000400000-0x00000000004D5000-memory.dmp
memory/1700-10-0x0000000000400000-0x00000000004D5000-memory.dmp
memory/2932-16-0x0000000000400000-0x00000000004D5000-memory.dmp
memory/2932-20-0x0000000000400000-0x00000000004D5000-memory.dmp