Analysis
- max time kernel
148s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
06/03/2024, 10:36
General
- Target b735ab2a4803756ebae55b15567ebe1c.exe
- Size 499KB
- Sample240306-mnpy4sha6s
- SHA256 23e005bc535e185e60ff9ac39333bde36508c0f01a261db7a00569ecc98640e4
Malware Config
Signatures
- ASPack v2.12-2.42 1 IoCs
Detects executables packed with ASPack v2.12-2.42
- Deletes itself 1 IoCs
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 8 IoCs
- UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in System32 directory 4 IoCs
- Suspicious use of SetWindowsHookEx 26 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b735ab2a4803756ebae55b15567ebe1c.exe"C:\Users\Admin\AppData\Local\Temp\b735ab2a4803756ebae55b15567ebe1c.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\winrssv.exeC:\Windows\system32\winrssv.exe2⤵
- Deletes itself
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
Exmlrpc.fne
krnln.fnr
zlib.dll
winrssv.exe
memory/1992-28-0x0000000010000000-0x000000001017E000-memory.dmp
memory/1992-39-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1992-54-0x00000000025F0000-0x00000000025F1000-memory.dmp
memory/1992-49-0x00000000004C0000-0x00000000004C1000-memory.dmp
memory/1992-48-0x0000000010000000-0x000000001017E000-memory.dmp
memory/1992-22-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1992-47-0x00000000025F0000-0x00000000025F1000-memory.dmp
memory/1992-27-0x0000000010000000-0x000000001017E000-memory.dmp
memory/1992-46-0x0000000002610000-0x000000000262A000-memory.dmp
memory/1992-32-0x00000000023F0000-0x000000000240E000-memory.dmp
memory/1992-44-0x0000000002610000-0x000000000262A000-memory.dmp
memory/1992-41-0x00000000023F0000-0x000000000240E000-memory.dmp
memory/1992-40-0x0000000002630000-0x0000000002657000-memory.dmp
memory/5024-5-0x0000000010000000-0x000000001017E000-memory.dmp
memory/5024-34-0x0000000010000000-0x000000001017E000-memory.dmp
memory/5024-33-0x0000000000400000-0x000000000042F000-memory.dmp
memory/5024-0-0x0000000000400000-0x000000000042F000-memory.dmp
memory/5024-8-0x0000000002070000-0x0000000002071000-memory.dmp
memory/5024-9-0x0000000010000000-0x000000001017E000-memory.dmp
memory/5024-16-0x0000000002090000-0x00000000020AE000-memory.dmp
memory/5024-10-0x0000000010000000-0x000000001017E000-memory.dmp