Analysis
- max time kernel
94s - max time network
95s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
06/09/2024, 00:58
General
- Target ef68c7e616f1c65fe3929c1357f20f60N.dll
- Size 235KB
- Sample240906-bblkdaxgrg
- SHA256 91977f04a991444c7a53f03e7ae23045eaac70b780c09b6225fff5ca4ab788e8
Malware Config
Signatures
- Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
- Detects Floxif payload 1 IoCs
- Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
- ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
- Loads dropped DLL 4 IoCs
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Program Files directory 1 IoCs
- Program crash 1 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 use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\ef68c7e616f1c65fe3929c1357f20f60N.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\ef68c7e616f1c65fe3929c1357f20f60N.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 7683⤵
- Loads dropped DLL
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2488 -ip 24881⤵
- Loads dropped DLL
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
symsrv.dll
memory/2488-0-0x0000000010000000-0x0000000010096000-memory.dmp
memory/2488-7-0x0000000002E50000-0x0000000002E80000-memory.dmp
memory/2488-9-0x0000000010092000-0x0000000010093000-memory.dmp
memory/2488-8-0x0000000002E50000-0x0000000002E80000-memory.dmp
memory/2488-13-0x0000000010000000-0x0000000010096000-memory.dmp
memory/2488-15-0x0000000002E50000-0x0000000002E80000-memory.dmp