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Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/12/2024, 00:04

General

  • Target

    e60783d91c7495c949981a6fd6308de6bb0b83fb8d45427f9b7377af311773a8.exe

  • Size

    272KB

  • MD5

    72b3ca1163908175823c69eb2e43f316

  • SHA1

    55e204c7d553211ac0170c2fd77eb2208db28c34

  • SHA256

    e60783d91c7495c949981a6fd6308de6bb0b83fb8d45427f9b7377af311773a8

  • SHA512

    36d40edfccf3adcc555252db85f5063474d71199b5fad6b977490787247df2bba7fc9164f990059ff2b5bd4470025a6258708a25f4bf864ce51eccaecf89ca35

  • SSDEEP

    6144:n+fr8JmUhbNIj28ebHr8CQXBV+UdvrEFp7hKn:n+D8Ln1bL8CQXBjvrEH7U

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.

  • 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 6 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e60783d91c7495c949981a6fd6308de6bb0b83fb8d45427f9b7377af311773a8.exe
    "C:\Users\Admin\AppData\Local\Temp\e60783d91c7495c949981a6fd6308de6bb0b83fb8d45427f9b7377af311773a8.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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4836
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Windows\temp\GetPart.bat
      2⤵
        PID:3760

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      67KB

      MD5

      7574cf2c64f35161ab1292e2f532aabf

      SHA1

      14ba3fa927a06224dfe587014299e834def4644f

      SHA256

      de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

      SHA512

      4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

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

      Filesize

      175B

      MD5

      1130c911bf5db4b8f7cf9b6f4b457623

      SHA1

      48e734c4bc1a8b5399bff4954e54b268bde9d54c

      SHA256

      eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

      SHA512

      94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

    • C:\Windows\temp\GetPart.bat

      Filesize

      98B

      MD5

      2d1f89869dc8657ffd579dee66f4b40b

      SHA1

      c190ae3ea592b3e6307a8dc5b5c1182417fd640a

      SHA256

      f724a5a958d36092a1dd2e8684edeb6da6ff82b99eeb4c32499f3b62649ccea8

      SHA512

      ac3d1a098965160d52e615a7b87788c41ade851e941ad71c105a1c1f2246106a9c18b71b5a790a3d8a7815113ff072e1187ed05db55fd1d346fc5a022961be02

    • memory/4836-3-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4836-8-0x0000000000421000-0x0000000000424000-memory.dmp

      Filesize

      12KB

    • memory/4836-17-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/4836-20-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4836-28-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4836-31-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4836-37-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB