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Analysis

  • max time kernel
    94s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/01/2025, 15:46

General

  • Target

    502d374b2967fe0ac0057e620f5b543671df21d1c7d414d8a4bfdc3922a392cc.exe

  • Size

    9.8MB

  • MD5

    18034a901eaf8fb3717e23a57ee81d8c

  • SHA1

    a3673ad2b501a88a198a79a89e87e538a65905aa

  • SHA256

    502d374b2967fe0ac0057e620f5b543671df21d1c7d414d8a4bfdc3922a392cc

  • SHA512

    dac4d7ba866cd1f152d50e915ef60c66b69d1d241effd9f6063087ebe9e301f1f08e5f512d638b36ffd7a26ec42d49d86553cb9141d36b45b9a2643110758552

  • SSDEEP

    196608:qwOYT73A/PCDoWzN87yZqLcbUm4CzknrnbELh19M8pjx6gO0EMT2:Fl7SqDhqyZqLwqqk3E39npjZO0Em2

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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 15 IoCs

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

  • Drops file in Program Files directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\502d374b2967fe0ac0057e620f5b543671df21d1c7d414d8a4bfdc3922a392cc.exe
    "C:\Users\Admin\AppData\Local\Temp\502d374b2967fe0ac0057e620f5b543671df21d1c7d414d8a4bfdc3922a392cc.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:4404
    • C:\Users\Admin\AppData\Local\Temp\gpuz_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\\gpuz_installer.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3468
      • C:\Users\Admin\AppData\Local\Temp\is-AM2HP.tmp\gpuz_installer.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-AM2HP.tmp\gpuz_installer.tmp" /SL5="$702A2,832512,832512,C:\Users\Admin\AppData\Local\Temp\gpuz_installer.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2192
        • C:\Program Files (x86)\GPU-Z\GPU-Z.exe
          "C:\Program Files (x86)\GPU-Z\GPU-Z.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:3980
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3980 -s 588
            5⤵
            • Program crash
            PID:1696
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3980 -ip 3980
    1⤵
      PID:5036

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Common Files\Microsoft Shared\ink\tiptsf.dll.tmp

      Filesize

      589KB

      MD5

      9320414cb57a014974ed07c0f0f72f61

      SHA1

      d4f4a1ab5ba3f0455335973e06a0b5e81d92d9f0

      SHA256

      b4f22d7753c63f80b3b755edb0cbd8a17dd94b668d2869abb35cf6e614103c93

      SHA512

      a0ee92606b3601b5398b8a8fd83884733e86ce6ed4d495d28866fc0d74524504970abe405f2c165f1b4af3b6a0f11fed55a26be322ad3e00159a75701fafb621

    • 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:\Users\Admin\AppData\Local\Temp\A1D26E2\BD2611F41134.tmp

      Filesize

      9.7MB

      MD5

      59ff332a0d85a88b7dd738dccebbd19a

      SHA1

      2d6efa47db707f32d6c0db60eb8503aac296331d

      SHA256

      8410417eedee486485b233431486e104dab17bef6b53a964fe72691f14b5a7c6

      SHA512

      b6fde6aec5403c99a46f7a0a0c410fa76007f0416aec9d9b3a646e1989e8ccda352953617989b0a1d63bd5ce5f56d83a168d258925e5bd34ebe0b6a1ebe74434

    • C:\Users\Admin\AppData\Local\Temp\gpuz_installer.exe

      Filesize

      1.6MB

      MD5

      adb15bf5d30c7139d1a4c4f161ad80d0

      SHA1

      57b97530e668d75e1b0451822ae36897f889dc65

      SHA256

      ffe80b378485e6ba258911f5dedf292640ee378221f62eec9d60e84914bd0798

      SHA512

      014f4318c40009127671dac7d5826ca81bab813a3cdf4e998ea96861aa6c57e3366e47c8961b75834d877bc4cdeff5476d85993b67d4e00e99d511045f0c7638

    • C:\Users\Admin\AppData\Local\Temp\is-AM2HP.tmp\gpuz_installer.tmp

      Filesize

      3.1MB

      MD5

      4c9111b5058cb0a71da1c566e6b15de5

      SHA1

      cdf0963572c509ecc8651a7081dd5aca44886007

      SHA256

      ff02cd92b07585423ef7bdd0a873374922767fe21f93fcebc24181a5ee2111fa

      SHA512

      3dc28a3f0a1404b67dd5374e2c5e13f1c1b0250c1e07666dbbd4bf31b400ee549c3beb7b872dd7d10dd54ce401b01a362a59bca54b2c7209cbedd97caa7cea46

    • memory/2192-83-0x0000000000400000-0x000000000071C000-memory.dmp

      Filesize

      3.1MB

    • memory/2192-62-0x0000000000400000-0x000000000071C000-memory.dmp

      Filesize

      3.1MB

    • memory/2192-42-0x0000000000400000-0x000000000071C000-memory.dmp

      Filesize

      3.1MB

    • memory/3468-23-0x0000000000400000-0x00000000004D8000-memory.dmp

      Filesize

      864KB

    • memory/3468-26-0x0000000000400000-0x00000000004D8000-memory.dmp

      Filesize

      864KB

    • memory/3468-41-0x0000000000400000-0x00000000004D8000-memory.dmp

      Filesize

      864KB

    • memory/3468-85-0x0000000000400000-0x00000000004D8000-memory.dmp

      Filesize

      864KB

    • memory/3980-81-0x00000000007A0000-0x0000000003488000-memory.dmp

      Filesize

      44.9MB

    • memory/3980-90-0x00000000007A0000-0x0000000003488000-memory.dmp

      Filesize

      44.9MB

    • memory/4404-37-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4404-38-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4404-46-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4404-33-0x0000000076925000-0x0000000076926000-memory.dmp

      Filesize

      4KB

    • memory/4404-32-0x0000000000420000-0x0000000003108000-memory.dmp

      Filesize

      44.9MB

    • memory/4404-14-0x0000000000420000-0x0000000003108000-memory.dmp

      Filesize

      44.9MB

    • memory/4404-70-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4404-8-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4404-7-0x0000000000420000-0x0000000003108000-memory.dmp

      Filesize

      44.9MB

    • memory/4404-6-0x00000000030F1000-0x00000000030F2000-memory.dmp

      Filesize

      4KB

    • memory/4404-88-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4404-86-0x0000000000420000-0x0000000003108000-memory.dmp

      Filesize

      44.9MB

    • memory/4404-5-0x0000000000420000-0x0000000003108000-memory.dmp

      Filesize

      44.9MB