Analysis

  • max time kernel
    149s
  • max time network
    131s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    21/04/2026, 08:47

General

  • Target
    cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe
  • Size 4.0MB
  • Sample260421-kp2cesev3w
  • SHA256 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Detects Floxif payload 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 2 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 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 behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe
    "C:\Users\Admin\AppData\Local\Temp\cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1400

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        symsrv.dll

        • Path C:\Program Files\Common Files\System\symsrv.dll
        • Size 67KB
        • SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
        • MD5 SHA1 SHA512 SSDEEP TLSH

        dr.dll

        • Path C:\Users\Admin\AppData\Local\Temp\dr.dll
        • Size 166KB
        • SHA256 ae9fbeba9754149496261d88bbef1130d5b123a735a493a481336134027deaf4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1400-4-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1400-6-0x0000000000401000-0x0000000000402000-memory.dmp

        memory/1400-20-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1400-23-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1400-24-0x0000000002C40000-0x0000000002C91000-memory.dmp

        memory/1400-21-0x0000000000400000-0x0000000000801000-memory.dmp

        memory/1400-22-0x0000000000B70000-0x0000000000B76000-memory.dmp

        memory/1400-32-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1400-31-0x0000000002C40000-0x0000000002C91000-memory.dmp

        memory/1400-28-0x0000000000400000-0x0000000000801000-memory.dmp