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Analysis

  • max time kernel
    93s
  • max time network
    144s
  • 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, 06:33

General

  • Target

    1ae6c7ed08e3d241bf12a6fe336d4dfa6bd3d8957a3f2f9d227110db69d126d5.exe

  • Size

    7.2MB

  • MD5

    0ed41a6789165b4cee6b2207dfbeb8bf

  • SHA1

    d2932d16d242e77232f69749e4a4127ddf69d4ed

  • SHA256

    1ae6c7ed08e3d241bf12a6fe336d4dfa6bd3d8957a3f2f9d227110db69d126d5

  • SHA512

    25530190acd080ac833c8aecb523f3a598750210e31a41fbdfdf0a4ca62f061af4347dc601842f29ed23a110c6f185c67d5230f8b26e195a533f0c24cc4d63e4

  • SSDEEP

    196608:AQI/FUZANbwhcuhvxFpVuQ39TVh8bm8l+L8ZdoQGT:M/ESw6u/7Vu2ljj8ZdolT

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 14 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\1ae6c7ed08e3d241bf12a6fe336d4dfa6bd3d8957a3f2f9d227110db69d126d5.exe
    "C:\Users\Admin\AppData\Local\Temp\1ae6c7ed08e3d241bf12a6fe336d4dfa6bd3d8957a3f2f9d227110db69d126d5.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:1844
    • 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:4076
      • C:\Users\Admin\AppData\Local\Temp\is-AQ1FU.tmp\gpuz_installer.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-AQ1FU.tmp\gpuz_installer.tmp" /SL5="$D01D8,721408,721408,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:4260
        • 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:3672
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 588
            5⤵
            • Program crash
            PID:4740
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3672 -ip 3672
    1⤵
      PID:3460

    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

      8717be34d7ced5c63279ada75298b71c

      SHA1

      2eaa457141bd00a7a81358b08335c88accf9ac97

      SHA256

      734b6e3b585fe9bf2c0a5a4d514ced5c4637ae986ac8d730edca63222cd7ff6b

      SHA512

      54d4e66ce3a14d849783acc889304a629d46de6f0976e8988355e41bbc0c90ddc684803747b7546b622745e7126d30284d202fb0b07a5761195fbaa8c7f551a8

    • 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\F00D870734.tmp

      Filesize

      7.1MB

      MD5

      3fee6713f764fc44c5d4781eddb09b39

      SHA1

      718958c9854058defd8f9eed9f3c24cd7b84b262

      SHA256

      40784953b0d12f6eb1900ac9efec5d0cbf819ddfb11f08517104279f007bb604

      SHA512

      b4c11845fd3ac26b7ec2773818ddab7e50854b50be6eee2aba8ce78c9363fc6d4a210f6f8ff19376b6f1b14cc2a3126ba2a9195557e44389a55083ec18c3e18d

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

      Filesize

      1.4MB

      MD5

      db0fe2fc8b640f81be6103efabb69fc1

      SHA1

      b8ede445e915c83981ec63b5ba5cf32ec4017f01

      SHA256

      6cdfac9a6fd83d7a0b652bd8d5a971a753704302e697c3129dcaa5f2de465a44

      SHA512

      086695eadbc175e1fad454f3aecee927846fc22ad9f99933b89a722e8e48badc1ce0fb77237711aae674086fff0ee9ba875c79c4f67e84800b72723b1426c393

    • C:\Users\Admin\AppData\Local\Temp\is-AQ1FU.tmp\gpuz_installer.tmp

      Filesize

      2.4MB

      MD5

      8e2d270339dcd0a68fbb2f02a65d45dd

      SHA1

      bfcdb1f71692020858f96960e432e94a4e70c4a4

      SHA256

      506176b3245de84bb0b7a4da4b8068b9dd289eb9a3a1757d4183c7c3f168c811

      SHA512

      31eac8aabe8ac83f24d4eba21bc3a52b56105f52402aeb00e505a6be3208cf92cc57529b26f1b29605f554dccdff51e9f28f584268bfda689f53be624f3fd647

    • memory/1844-87-0x0000000000430000-0x0000000002027000-memory.dmp

      Filesize

      28.0MB

    • memory/1844-7-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1844-6-0x0000000002011000-0x0000000002012000-memory.dmp

      Filesize

      4KB

    • memory/1844-32-0x0000000075AC5000-0x0000000075AC6000-memory.dmp

      Filesize

      4KB

    • memory/1844-13-0x0000000000430000-0x0000000002027000-memory.dmp

      Filesize

      28.0MB

    • memory/1844-89-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1844-35-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1844-37-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1844-36-0x0000000000430000-0x0000000002027000-memory.dmp

      Filesize

      28.0MB

    • memory/1844-70-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1844-5-0x0000000000430000-0x0000000002027000-memory.dmp

      Filesize

      28.0MB

    • memory/1844-44-0x0000000075AC5000-0x0000000075AC6000-memory.dmp

      Filesize

      4KB

    • memory/1844-46-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3672-90-0x00000000008F0000-0x00000000024E7000-memory.dmp

      Filesize

      28.0MB

    • memory/3672-81-0x00000000008F0000-0x00000000024E7000-memory.dmp

      Filesize

      28.0MB

    • memory/4076-22-0x0000000000400000-0x00000000004BE000-memory.dmp

      Filesize

      760KB

    • memory/4076-86-0x0000000000400000-0x00000000004BE000-memory.dmp

      Filesize

      760KB

    • memory/4076-42-0x0000000000400000-0x00000000004BE000-memory.dmp

      Filesize

      760KB

    • memory/4076-31-0x0000000000400000-0x00000000004BE000-memory.dmp

      Filesize

      760KB

    • memory/4260-68-0x0000000000400000-0x0000000000679000-memory.dmp

      Filesize

      2.5MB

    • memory/4260-43-0x0000000000400000-0x0000000000679000-memory.dmp

      Filesize

      2.5MB

    • memory/4260-84-0x0000000075AB0000-0x0000000075B13000-memory.dmp

      Filesize

      396KB

    • memory/4260-83-0x0000000000400000-0x0000000000679000-memory.dmp

      Filesize

      2.5MB

    • memory/4260-34-0x0000000075AB0000-0x0000000075B13000-memory.dmp

      Filesize

      396KB