Analysis
- max time kernel
143s - max time network
126s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
10/04/2024, 14:46
General
- Target setup_installer.exe
- Size 4.3MB
- Sample240410-r5raqabf84
- SHA256 6a9a3047c827fcd99d8a97668337ca2d7af78b3b634e73e2461e8429e264c7e2
Malware Config
Extracted
-
nullmixer
-
http://estrix.xyz/
Signatures
- NullMixer
NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.
- ASPack v2.12-2.42 4 IoCs
Detects executables packed with ASPack v2.12-2.42
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 15 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\7zS029F4F47\setup_install.exe"C:\Users\Admin\AppData\Local\Temp\7zS029F4F47\setup_install.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 3523⤵
- Loads dropped DLL
- Program crash
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
libcurl.dll
libcurlpp.dll
libgcc_s_dw2-1.dll
libstdc++-6.dll
libwinpthread-1.dll
setup_install.exe
memory/1976-75-0x0000000000400000-0x000000000051D000-memory.dmp
memory/1976-64-0x0000000064940000-0x0000000064959000-memory.dmp
memory/1976-67-0x000000006FE40000-0x000000006FFC6000-memory.dmp
memory/1976-66-0x000000006FE40000-0x000000006FFC6000-memory.dmp
memory/1976-70-0x000000006FE40000-0x000000006FFC6000-memory.dmp
memory/1976-72-0x000000006B280000-0x000000006B2A6000-memory.dmp
memory/1976-71-0x000000006B280000-0x000000006B2A6000-memory.dmp
memory/1976-73-0x000000006B280000-0x000000006B2A6000-memory.dmp
memory/1976-74-0x0000000000400000-0x000000000051D000-memory.dmp
memory/1976-77-0x0000000000400000-0x000000000051D000-memory.dmp
memory/1976-80-0x0000000000400000-0x000000000051D000-memory.dmp
memory/1976-79-0x0000000000400000-0x000000000051D000-memory.dmp
memory/1976-78-0x0000000000400000-0x000000000051D000-memory.dmp
memory/1976-76-0x0000000000400000-0x000000000051D000-memory.dmp
memory/1976-61-0x0000000000B90000-0x0000000000CAD000-memory.dmp
memory/1976-69-0x000000006FE40000-0x000000006FFC6000-memory.dmp
memory/1976-65-0x000000006B440000-0x000000006B4CF000-memory.dmp
memory/1976-68-0x0000000000B90000-0x0000000000CAD000-memory.dmp
memory/1976-63-0x000000006B440000-0x000000006B4CF000-memory.dmp
memory/1976-62-0x0000000000B90000-0x0000000000CAD000-memory.dmp
memory/1976-60-0x000000006B440000-0x000000006B4CF000-memory.dmp
memory/1976-59-0x000000006B440000-0x000000006B4CF000-memory.dmp
memory/1976-58-0x000000006FE40000-0x000000006FFC6000-memory.dmp
memory/1976-51-0x000000006B440000-0x000000006B4CF000-memory.dmp
memory/1976-47-0x000000006B280000-0x000000006B2A6000-memory.dmp
memory/1976-42-0x0000000000400000-0x000000000051D000-memory.dmp
memory/1976-86-0x0000000064940000-0x0000000064959000-memory.dmp
memory/1976-87-0x000000006B280000-0x000000006B2A6000-memory.dmp
memory/1976-85-0x0000000000400000-0x000000000051D000-memory.dmp
memory/1976-90-0x000000006FE40000-0x000000006FFC6000-memory.dmp
memory/1976-89-0x000000006EB40000-0x000000006EB63000-memory.dmp
memory/1976-88-0x000000006B440000-0x000000006B4CF000-memory.dmp
memory/2336-38-0x0000000002D80000-0x0000000002E9D000-memory.dmp
memory/2336-40-0x0000000002D80000-0x0000000002E9D000-memory.dmp