Analysis
- max time kernel
146s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
29/08/2024, 03:59
General
- Target 2024-08-29_88a2e34de24a77b48b1a2c55c177532f_avoslocker_cobalt-strike_floxif.exe
- Size 224KB
- Sample240829-ej8lnavaqr
- SHA256 3743cce7b152c0fc29cd636317b594fe6ba80ca76c4b4db6f6d21f6fd333eee0
Malware Config
Signatures
- Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
- Detects Floxif payload 1 IoCs
- ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
- Loads dropped DLL 1 IoCs
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Drops file in Program Files directory 2 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-08-29_88a2e34de24a77b48b1a2c55c177532f_avoslocker_cobalt-strike_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-29_88a2e34de24a77b48b1a2c55c177532f_avoslocker_cobalt-strike_floxif.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
symsrv.dll
symsrv.dll.000
memory/1128-2-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1128-13-0x0000000000FE0000-0x000000000100B000-memory.dmp
memory/1128-15-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1128-21-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1128-27-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1128-39-0x0000000010000000-0x0000000010030000-memory.dmp