Analysis
- max time kernel
88s - max time network
89s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
17/08/2024, 00:45
General
- Target c3aa95970aa264cdd6f238987bc6e5b0N.dll
- Size 950KB
- Sample240817-a4befazhrr
- SHA256 72d834e83d86b30be875e5b3e952a8b718d2ffcc3ae45226045a07567dbc6442
Score
10/10
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 4 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\c3aa95970aa264cdd6f238987bc6e5b0N.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c3aa95970aa264cdd6f238987bc6e5b0N.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 3120 -s 7003⤵
- Loads dropped DLL
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3120 -ip 31201⤵
- Loads dropped DLL
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
symsrv.dll
memory/3120-3-0x0000000002850000-0x0000000002880000-memory.dmp
memory/3120-7-0x0000000002850000-0x0000000002880000-memory.dmp
memory/3120-13-0x0000000002850000-0x0000000002880000-memory.dmp
memory/3120-11-0x0000000010000000-0x00000000100D9000-memory.dmp