Analysis
- max time kernel
141s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
03/02/2024, 12:06
General
- Target 8c4840f635a07a944f92b2068f1dc132.exe
- Size 113KB
- Sample240203-n9tpvsbacl
- SHA256 1e946fa233a7770ebaf1f851c11a245b4e06f336616d5dd4d48ac7535f9c2ecf
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 16 IoCs
- ASPack v2.12-2.42 1 IoCs
Detects executables packed with ASPack v2.12-2.42
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 4 IoCs
- UPX packed file 18 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 3 IoCs
- Drops file in Windows directory 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- System policy modification 1 TTPs 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8c4840f635a07a944f92b2068f1dc132.exe"C:\Users\Admin\AppData\Local\Temp\8c4840f635a07a944f92b2068f1dc132.exe"1⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Windows\mstwain32.exe"C:\Windows\mstwain32.exe"2⤵
- UAC bypass
- Executes dropped EXE
- Loads dropped DLL
- 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
-
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
cmsetac.dll
mstwain32.exe
ntdtcstp.dll
memory/1280-10-0x0000000000400000-0x0000000000453000-memory.dmp
memory/1280-0-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-30-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-36-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-25-0x0000000002FA0000-0x0000000002FA1000-memory.dmp
memory/3956-26-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-27-0x0000000000800000-0x0000000000808000-memory.dmp
memory/3956-28-0x00000000030F0000-0x00000000030FE000-memory.dmp
memory/3956-29-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-18-0x00000000005B0000-0x00000000005B1000-memory.dmp
memory/3956-33-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-22-0x00000000030F0000-0x00000000030FE000-memory.dmp
memory/3956-39-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-42-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-45-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-48-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-51-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-54-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-57-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-60-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-63-0x0000000000400000-0x0000000000453000-memory.dmp
memory/3956-66-0x0000000000400000-0x0000000000453000-memory.dmp