Analysis
- max time kernel
93s - max time network
98s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
05/09/2024, 14:48
General
- Target 3e07c1732acff5a9091e0deeba01bd40N.dll
- Size 572KB
- Sample240905-r6wltstepc
- SHA256 3b678b1503b9170555550401e3137331b226cfa619cb90fa5d6f08e8a79d4d80
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 5 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Program Files directory 1 IoCs
- Program crash 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 use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3e07c1732acff5a9091e0deeba01bd40N.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3e07c1732acff5a9091e0deeba01bd40N.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 7283⤵
- Loads dropped DLL
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 7603⤵
- Loads dropped DLL
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3572 -ip 35721⤵
- Loads dropped DLL
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3572 -ip 35721⤵
- Loads dropped DLL
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
symsrv.dll
memory/3572-4-0x0000000010000000-0x0000000010030000-memory.dmp
memory/3572-5-0x0000000075341000-0x0000000075342000-memory.dmp
memory/3572-8-0x0000000075340000-0x00000000753C1000-memory.dmp
memory/3572-9-0x0000000075340000-0x00000000753C1000-memory.dmp
memory/3572-16-0x0000000010000000-0x0000000010030000-memory.dmp