Analysis

  • max time kernel
    113s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2025 12:40

General

  • Target

    37993d0c67f5df654f9f2ddb8561e540e717fa658b1099084144619dfc92b5b3N.exe

  • Size

    884KB

  • MD5

    a8272a4e210192fbfb8a5140673d0af0

  • SHA1

    79feef12c88e9ba5d93f9b30b5e704249cb8d853

  • SHA256

    37993d0c67f5df654f9f2ddb8561e540e717fa658b1099084144619dfc92b5b3

  • SHA512

    2004e76f1c3053765129ea4863e992334c313ff530cea3ac8e201b9511e5951514164a86dcdd9fc6328badf9ed89de333902a1aa2ca68a31d6101f15b7a483a3

  • SSDEEP

    24576:XXAhvvPPHMQCwrK7NUCDZnmiS7/4zNMjrEH7z4:g9zCw+7Nl1na7/0yV

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 23 IoCs

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

  • AutoIT Executable 3 IoCs

    AutoIT scripts compiled to PE executables.

  • UPX packed file 13 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.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\37993d0c67f5df654f9f2ddb8561e540e717fa658b1099084144619dfc92b5b3N.exe
    "C:\Users\Admin\AppData\Local\Temp\37993d0c67f5df654f9f2ddb8561e540e717fa658b1099084144619dfc92b5b3N.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2332
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:2692

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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\CheckDiskGUI_Temp.ini

      Filesize

      3KB

      MD5

      3df4e9c9b6f3f8fc51438b6364c78e4f

      SHA1

      d93ac7c32877d664d48688804c9d10caa69847b4

      SHA256

      cd9dcb190923327c746f3d9b94c457269fb2348e05db1ac0d97084111f7ff922

      SHA512

      4aac08d4127ab14b61ae46cff33454e6142b1354f125d4268dbb192b3fa61f064a92ec65104f499161a2309a69fb9e2f76694e8395bc53ca2704adc94d27a872

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

      Filesize

      67KB

      MD5

      7574cf2c64f35161ab1292e2f532aabf

      SHA1

      14ba3fa927a06224dfe587014299e834def4644f

      SHA256

      de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

      SHA512

      4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

    • memory/2332-31-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2332-36-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2332-25-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2332-26-0x0000000075176000-0x0000000075177000-memory.dmp

      Filesize

      4KB

    • memory/2332-29-0x0000000075170000-0x00000000751A5000-memory.dmp

      Filesize

      212KB

    • memory/2332-0-0x0000000000400000-0x000000000055A000-memory.dmp

      Filesize

      1.4MB

    • memory/2332-32-0x0000000075170000-0x00000000751A5000-memory.dmp

      Filesize

      212KB

    • memory/2332-22-0x0000000000400000-0x000000000055A000-memory.dmp

      Filesize

      1.4MB

    • memory/2332-35-0x0000000000400000-0x000000000055A000-memory.dmp

      Filesize

      1.4MB

    • memory/2332-40-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2332-39-0x0000000000400000-0x000000000055A000-memory.dmp

      Filesize

      1.4MB

    • memory/2332-4-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2332-44-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2332-48-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2332-56-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB