Analysis
- max time kernel
146s - max time network
123s - platform
windows7_x64 - resource
win7-20240215-en - resource tags
- submitted
03/04/2024, 19:50
General
- Target 2e3318f4afba624d194128204c9d94b7922f8610bcfd87f38b47e29ab0e8f3a7.exe
- Size 231KB
- Sample240403-ykgdcabc99
- SHA256 2e3318f4afba624d194128204c9d94b7922f8610bcfd87f38b47e29ab0e8f3a7
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 2 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 2 IoCs
- Drops file in Program Files directory 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2e3318f4afba624d194128204c9d94b7922f8610bcfd87f38b47e29ab0e8f3a7.exe"C:\Users\Admin\AppData\Local\Temp\2e3318f4afba624d194128204c9d94b7922f8610bcfd87f38b47e29ab0e8f3a7.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\Microsoft Build\Isass.exe"C:\Program Files (x86)\Microsoft Build\Isass.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Isass.exe
memory/1900-30-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-44-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-73-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-12-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-13-0x0000000000320000-0x0000000000321000-memory.dmp
memory/1900-68-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-15-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-16-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-17-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-45-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-67-0x00000000042D0000-0x0000000005577000-memory.dmp
memory/1900-43-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-63-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-46-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-47-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-48-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-49-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/1900-50-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2016-9-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2016-10-0x0000000000400000-0x00000000016A7000-memory.dmp
memory/2016-14-0x00000000041B0000-0x0000000005457000-memory.dmp
memory/2016-11-0x00000000041B0000-0x0000000005457000-memory.dmp