Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
07/06/2024, 09:18
General
- Target f51f2dc1d9b42ab16b9f3da9eb09c0943bf5f81c47a2ed66e933437b463b88f2.exe
- Size 80KB
- Sample240607-k9rcysfb82
- SHA256 f51f2dc1d9b42ab16b9f3da9eb09c0943bf5f81c47a2ed66e933437b463b88f2
Score
9/10
Malware Config
Signatures
- UPX dump on OEP (original entry point) 7 IoCs
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- UPX packed file 7 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 2 IoCs
- Drops file in Windows directory 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f51f2dc1d9b42ab16b9f3da9eb09c0943bf5f81c47a2ed66e933437b463b88f2.exe"C:\Users\Admin\AppData\Local\Temp\f51f2dc1d9b42ab16b9f3da9eb09c0943bf5f81c47a2ed66e933437b463b88f2.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\CTS.exe"C:\Windows\CTS.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
excel.exe_Rules.xml
99w3qyiongAq2Nl.exe
CTS.exe
memory/1504-8-0x0000000000770000-0x0000000000788000-memory.dmp
memory/1504-32-0x0000000000770000-0x0000000000788000-memory.dmp
memory/1836-0-0x0000000000160000-0x0000000000178000-memory.dmp
memory/1836-9-0x0000000000160000-0x0000000000178000-memory.dmp