Analysis
- max time kernel
125s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
16/09/2024, 15:22
General
- Target 2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe
- Size 4.7MB
- Sample240916-srz65svdpm
- SHA256 a61c854176f852e2391ce87ff9e3d61a9fdf8e5400397d3131fb27d750e61e5d
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 BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- 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 2 IoCs
- Program crash 1 IoCs
- 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.
- Modifies registry class 10 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.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
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe"2⤵
- Checks BIOS information in registry
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 10963⤵
- Loads dropped DLL
- Program crash
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4132,i,13995403245988825027,7033610968827661507,262144 --variations-seed-version --mojo-platform-channel-handle=4256 /prefetch:81⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1624 -ip 16241⤵
- Loads dropped DLL
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
symsrv.dll
memory/1492-1-0x0000000000400000-0x0000000000FE5000-memory.dmp
memory/1492-6-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1492-50-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1492-48-0x0000000000400000-0x0000000000FE5000-memory.dmp
memory/1492-39-0x0000000000400000-0x0000000000FE5000-memory.dmp
memory/1492-40-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1624-32-0x0000000000400000-0x0000000000FE5000-memory.dmp
memory/1624-36-0x0000000003B30000-0x0000000003C6C000-memory.dmp
memory/1624-25-0x0000000000400000-0x0000000000FE5000-memory.dmp
memory/1624-27-0x0000000000400000-0x0000000000FE5000-memory.dmp
memory/1624-28-0x0000000000400000-0x0000000000FE5000-memory.dmp
memory/1624-23-0x0000000000400000-0x0000000000FE5000-memory.dmp
memory/1624-31-0x0000000000400000-0x0000000000FE5000-memory.dmp
memory/1624-33-0x0000000003B30000-0x0000000003C6C000-memory.dmp
memory/1624-35-0x0000000003B30000-0x0000000003C6C000-memory.dmp
memory/1624-24-0x0000000000400000-0x0000000000FE5000-memory.dmp
memory/1624-42-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1624-41-0x0000000000400000-0x0000000000FE5000-memory.dmp
memory/1624-14-0x0000000003B30000-0x0000000003C6C000-memory.dmp
memory/1624-19-0x0000000003B30000-0x0000000003C6C000-memory.dmp
memory/1624-47-0x0000000003B30000-0x0000000003C6C000-memory.dmp
memory/1624-12-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1624-9-0x0000000000400000-0x0000000000FE5000-memory.dmp