Analysis
- max time kernel
146s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
02/09/2024, 23:28
General
- Target 2024-09-02_223ae14e695f8d24633bb783decf46d4_avoslocker_cobalt-strike_floxif.exe
- Size 224KB
- Sample240902-3f9ljszglp
- SHA256 8146ba3f0e2375e8c70bb6e09bf2569d27fea33c3f07f99e9600fc9897088508
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 7 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\2024-09-02_223ae14e695f8d24633bb783decf46d4_avoslocker_cobalt-strike_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-02_223ae14e695f8d24633bb783decf46d4_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/3148-2-0x0000000010000000-0x0000000010030000-memory.dmp
memory/3148-13-0x00000000004F0000-0x000000000051B000-memory.dmp
memory/3148-14-0x0000000010000000-0x0000000010030000-memory.dmp
memory/3148-20-0x0000000010000000-0x0000000010030000-memory.dmp
memory/3148-26-0x0000000010000000-0x0000000010030000-memory.dmp
memory/3148-38-0x0000000010000000-0x0000000010030000-memory.dmp
memory/3148-46-0x0000000010000000-0x0000000010030000-memory.dmp