Analysis
- max time kernel
144s - max time network
146s - platform
windows7_x64 - resource
win7-20231215-en - resource tags
- submitted
03/02/2024, 08:19
General
- Target 8bd9f4402f6d6fce424b00d9ba58f199.exe
- Size 894KB
- Sample240203-j7261afcbl
- SHA256 b67c0a93586ce62991591c10cfcfb338b664ad4fd3b9aac496ef23728b7e2a4b
Malware Config
Signatures
- ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
- UAC bypass 3 TTPs 1 IoCs
- ModiLoader Second Stage 28 IoCs
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 3 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Drops file in Windows directory 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of SetWindowsHookEx 6 IoCs
- Suspicious use of WriteProcessMemory 28 IoCs
- System policy modification 1 TTPs 1 IoCs
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\8bd9f4402f6d6fce424b00d9ba58f199.exe"C:\Users\Admin\AppData\Local\Temp\8bd9f4402f6d6fce424b00d9ba58f199.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\8bd9f4402f6d6fce424b00d9ba58f199.EXE8bd9f4402f6d6fce424b00d9ba58f199.EXE2⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\mstwain32.exe"C:\Windows\mstwain32.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\mstwain32.EXEmstwain32.EXE4⤵
- UAC bypass
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
mstwain32.exe
mstwain32.exe
00000000
memory/1636-57-0x0000000000400000-0x00000000007AC01A-memory.dmp
memory/1976-21-0x0000000000400000-0x00000000007AC01A-memory.dmp
memory/2044-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2044-7-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2044-13-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2044-20-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2044-22-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2044-3-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2044-15-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2044-23-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2044-11-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2044-32-0x0000000000770000-0x00000000008F1000-memory.dmp
memory/2044-33-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2044-9-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2044-19-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2044-5-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-68-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-74-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-60-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-65-0x0000000000280000-0x0000000000281000-memory.dmp
memory/2656-66-0x0000000000790000-0x000000000079E000-memory.dmp
memory/2656-62-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-70-0x0000000074B80000-0x0000000074B94000-memory.dmp
memory/2656-69-0x00000000750A0000-0x0000000075190000-memory.dmp
memory/2656-71-0x0000000000780000-0x0000000000781000-memory.dmp
memory/2656-72-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-73-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-59-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-75-0x00000000750A0000-0x0000000075190000-memory.dmp
memory/2656-76-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-77-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-79-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-80-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-81-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-82-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-83-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-84-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-85-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-86-0x0000000000400000-0x000000000044B000-memory.dmp
memory/2656-87-0x0000000000400000-0x000000000044B000-memory.dmp