Analysis
- max time kernel
94s - max time network
116s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
04/09/2024, 07:48
General
- Target ef5555f8c210c4b2bbb13955d97feaf0N.exe
- Size 449KB
- Sample240904-jnexcswflr
- SHA256 12d64d711b28717f9f3647de9e6e88b1e4f25cf957cb988d6c8b5b5d8fc191e3
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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 4 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 7 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ef5555f8c210c4b2bbb13955d97feaf0N.exe"C:\Users\Admin\AppData\Local\Temp\ef5555f8c210c4b2bbb13955d97feaf0N.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe"C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe"2⤵
- 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
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe"3⤵
- Loads dropped DLL
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
AdobeARM.exe.tmp
symsrv.dll
ArmReport.ini
AdobeARM.log
ArmUI.ini
TmpC832.tmp
TmpDF17.tmp
TmpDF37.tmp
TmpE11D.tmp
memory/1624-11-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1624-4-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1624-9-0x0000000000980000-0x00000000009E2000-memory.dmp
memory/1624-6-0x0000000000982000-0x0000000000983000-memory.dmp
memory/1624-7-0x0000000000980000-0x00000000009E2000-memory.dmp
memory/1800-111-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1800-109-0x00000000008E0000-0x0000000000A07000-memory.dmp
memory/1800-14-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1800-296-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1800-294-0x00000000008E0000-0x0000000000A07000-memory.dmp