Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
04/11/2026, 17:41
General
- Target 2026-11-03_6d6c471d9dc72b97b13985b5d103f8e8_elex_emotet_floxif_icedid_nymaim_remcos.exe
- Size 4.4MB
- Sample261104-v9jyzset2p
- SHA256 4f50e9e23dcebf8ad1ade8499f551cdf701c1c65dd0c60eab19adde5296a6a74
Malware Config
Signatures
- Family: Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
- Detects Floxif payload 1 IoCs
- UPX dump on OEP (original entry point) 7 IoCs
- 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 1 IoCs
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- UPX packed file 7 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Program Files directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- 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 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-11-03_6d6c471d9dc72b97b13985b5d103f8e8_elex_emotet_floxif_icedid_nymaim_remcos.exe"C:\Users\Admin\AppData\Local\Temp\2026-11-03_6d6c471d9dc72b97b13985b5d103f8e8_elex_emotet_floxif_icedid_nymaim_remcos.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\PWRISOSH.DLL"2⤵
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
symsrv.dll
symsrv.dll.000
9EFA.tmp.ico
memory/4972-24-0x0000000076AF0000-0x0000000076B53000-memory.dmp
memory/4972-19-0x0000000076AF0000-0x0000000076B53000-memory.dmp
memory/4972-20-0x0000000010000000-0x0000000010030000-memory.dmp
memory/4972-21-0x0000000010000000-0x0000000010030000-memory.dmp
memory/4972-22-0x0000000076AF0000-0x0000000076B53000-memory.dmp
memory/4972-17-0x0000000076B05000-0x0000000076B06000-memory.dmp
memory/4972-25-0x0000000076AF0000-0x0000000076B53000-memory.dmp
memory/4972-4-0x0000000010000000-0x0000000010030000-memory.dmp
memory/4972-27-0x0000000010000000-0x0000000010030000-memory.dmp
memory/4972-30-0x0000000010000000-0x0000000010030000-memory.dmp
memory/4972-36-0x0000000010000000-0x0000000010030000-memory.dmp
memory/4972-42-0x0000000076AF0000-0x0000000076B53000-memory.dmp
memory/4972-44-0x0000000076AF0000-0x0000000076B53000-memory.dmp