Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/05/2026, 01:46

General

  • Target
    2026-05-22_9e6e1a78dc20a730242a0086407418cd_elex_floxif_manuscrypt_rhadamanthys_stealc_stop.exe
  • Size 385KB
  • Sample260522-b63gdaez7v
  • SHA256 b84d368398f330ced08924699e4319e5c0d876d5fec471e16304c4bf6af46d0c
  • 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
  • UPX dump on OEP (original entry point) 6 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 2 IoCs
  • Badlisted process makes network request 1 IoCs

    Network request originating from process or tool commonly abused by malware.

  • 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 6 IoCs

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

  • Drops file in Program Files directory 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-22_9e6e1a78dc20a730242a0086407418cd_elex_floxif_manuscrypt_rhadamanthys_stealc_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-22_9e6e1a78dc20a730242a0086407418cd_elex_floxif_manuscrypt_rhadamanthys_stealc_stop.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec.exe /i "C:\Users\Admin\AppData\Local\Temp\MSI\Setup.msi"
      2⤵
      • Loads dropped DLL
      • Badlisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4540

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

        memory/4540-9-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/4540-12-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/5040-4-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/5040-6-0x0000000000411000-0x0000000000412000-memory.dmp

        memory/5040-10-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/5040-13-0x0000000000410000-0x0000000000460000-memory.dmp

        memory/5040-15-0x0000000010000000-0x0000000010030000-memory.dmp