Analysis

  • max time kernel
    120s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10/01/2025, 23:42

General

  • Target

    aa244f97fe4ee7ab887e62fcce98aec5304b4d2ffe9df40ad02f35a4e7a71421N.exe

  • Size

    317KB

  • MD5

    1182b161d3d4f03e9378992b59c95230

  • SHA1

    b53c4d8e064c8dbd8fd68dcccbff1e844edd4b1e

  • SHA256

    aa244f97fe4ee7ab887e62fcce98aec5304b4d2ffe9df40ad02f35a4e7a71421

  • SHA512

    c814a29b3e41cdb306847509daf40687c834a46dcd7f7633de9fa9f32c60550551baf1cf1eccb4ea2602ab7806e3892621c308aca98f864c942e3ac195edbe40

  • SSDEEP

    6144:eXfQOrRezFWuRwIUnJs32YzoAuvZ2qU1fTKEGykpwz/BV+UdvrEFp7hK6Rr:eXoOrReFWQkEzobg1fT8mrBjvrEH7xRr

Malware Config

Signatures

  • Floxif 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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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 8 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).

  • 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.

  • Modifies registry class 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 19 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aa244f97fe4ee7ab887e62fcce98aec5304b4d2ffe9df40ad02f35a4e7a71421N.exe
    "C:\Users\Admin\AppData\Local\Temp\aa244f97fe4ee7ab887e62fcce98aec5304b4d2ffe9df40ad02f35a4e7a71421N.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
    PID:2124
    • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DaO_x64.exe
      "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DaO_x64.exe"
      2⤵
      • Executes dropped EXE
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:2752

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Common Files\System\symsrv.dll.000

    Filesize

    175B

    MD5

    1130c911bf5db4b8f7cf9b6f4b457623

    SHA1

    48e734c4bc1a8b5399bff4954e54b268bde9d54c

    SHA256

    eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

    SHA512

    94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\DaO_x64.exe

    Filesize

    347KB

    MD5

    a4b773d0eac0c66459d80f5efd8410c8

    SHA1

    7f99ffc1a5d0e7ef52418e8d54ccac8fbd38c24d

    SHA256

    3454e204a1ffd53ca8cb38a9f8c3e298399e18a3edfd28b6d7e7a12727220120

    SHA512

    295e1306344b2d6d18f2277a5ec3e04754dffa32cd78d6b886f8d279bdd2e4f470ff9b89d302dc967f250fed79808c4227a2a0fb4fabb47f7cdb0370a481fd1d

  • \Program Files\Common Files\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/2124-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2124-5-0x0000000000402000-0x0000000000405000-memory.dmp

    Filesize

    12KB

  • memory/2124-27-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2124-31-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2124-35-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2124-40-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2124-43-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2124-44-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2752-26-0x0000000005A70000-0x0000000005A80000-memory.dmp

    Filesize

    64KB