Analysis
- max time kernel
141s - max time network
96s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
11/06/2024, 02:44
General
- Target bfdcc736c0ddfbae5ca635a55f2d9b7b8bcd95e200e2320f9746171a48c548be.exe
- Size 27KB
- Sample240611-c8naxa1eme
- SHA256 bfdcc736c0ddfbae5ca635a55f2d9b7b8bcd95e200e2320f9746171a48c548be
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\bfdcc736c0ddfbae5ca635a55f2d9b7b8bcd95e200e2320f9746171a48c548be.exe"C:\Users\Admin\AppData\Local\Temp\bfdcc736c0ddfbae5ca635a55f2d9b7b8bcd95e200e2320f9746171a48c548be.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
XU58yrFf6Ykc2Ls.exe
CTS.exe
memory/316-10-0x0000000000C50000-0x0000000000C68000-memory.dmp
memory/316-32-0x0000000000C50000-0x0000000000C68000-memory.dmp
memory/5016-0-0x0000000000050000-0x0000000000068000-memory.dmp
memory/5016-9-0x0000000000050000-0x0000000000068000-memory.dmp