Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-12-2024 20:36

General

  • Target

    27e5d6f6db433b53db3c535538512b27b4aec7d2af13996a9118aef4e195e8b4.exe

  • Size

    2.5MB

  • MD5

    d8af704b6de9cd7b2bd4d84cb29e8caa

  • SHA1

    d400409c90f82f6593ab50c924c6ad9a1a0d5b68

  • SHA256

    27e5d6f6db433b53db3c535538512b27b4aec7d2af13996a9118aef4e195e8b4

  • SHA512

    56efaa823980496547b6cb33903a746c57aa3628c626b321ecf61a97a1e3351843009b685aebb09317449f941799a823b5f6af6d959da0287760e5d4cdd7780d

  • SSDEEP

    49152:NQi1Dm59Z9mam7Lv+7edYBwY/h6yGLhjPSHU:SoDm4am7L+7AYuY3ih+HU

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
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Drops autorun.inf file 1 TTPs 22 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • UPX packed file 10 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 2 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.

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 38 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\27e5d6f6db433b53db3c535538512b27b4aec7d2af13996a9118aef4e195e8b4.exe
    "C:\Users\Admin\AppData\Local\Temp\27e5d6f6db433b53db3c535538512b27b4aec7d2af13996a9118aef4e195e8b4.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4024
    • C:\Windows\SysWOW64\explorer.exe
      explorer.exe C:\Users\Admin\AppData\Local\Temp\27e5d6f6db433b53db3c535538512b27b4aec7d2af13996a9118aef4e195e8b4
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:5068
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Windows\Inf\svchost.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2884
      • C:\Windows\Inf\svchost.exe
        C:\Windows\Inf\svchost.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Enumerates connected drives
        • Drops autorun.inf file
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3260
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:4548
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2764

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\PROGRA~1\COMMON~1\System\symsrv.dll.000

      Filesize

      175B

      MD5

      1130c911bf5db4b8f7cf9b6f4b457623

      SHA1

      48e734c4bc1a8b5399bff4954e54b268bde9d54c

      SHA256

      eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

      SHA512

      94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

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

      Filesize

      67KB

      MD5

      7574cf2c64f35161ab1292e2f532aabf

      SHA1

      14ba3fa927a06224dfe587014299e834def4644f

      SHA256

      de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

      SHA512

      4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

    • C:\Users\Admin\AppData\Local\Temp\A1D26E2\978D8A0FB8.tmp

      Filesize

      2.4MB

      MD5

      40d29684f59e04004923f604b9d40090

      SHA1

      65dfe6d69eb10c74ee3acd0f6e1c1b0d635c2a31

      SHA256

      d85acbe7b5ebb63343affba9c77f1f0cda032d32a0c80d1e96801af0dba4fe68

      SHA512

      daa2222fc7ec49260f0c9ccb08373a338af4acbb96bcf0847e75a3ef3b557b5a15690fa5fc97b3bda20cc0cfdb455bf410be38fdd4ce7c4351cb89a5c1b1c1cc

    • C:\boot.ima

      Filesize

      1.4MB

      MD5

      11ba9fcc7cfff6e4940abf70fb707eae

      SHA1

      0b2ba1b36eec932a4f0f9433bd5202c1e9a09398

      SHA256

      63d1deaf70ebaacec01aba35896a676e3b5bcc5d56233022b96a174b2f04a652

      SHA512

      dec58982880032fa36c63691a4d00b38c37dfce916c8c06a5e7211beb6f1c6b5e841f2132f2c180a5de9c78f1537b380588bca4065b7257bf70ea4cb197e909f

    • C:\boot.ini

      Filesize

      78B

      MD5

      dea0a4576217d29ba0642cc9b7553960

      SHA1

      e9443f50038d6ae759b85286dad3d4b367542f45

      SHA256

      59cd24365246d4dbf59643850323904d5b65c33b2b81b1bf9bd8ca07816ae77a

      SHA512

      5eae93d334b19451c8b8765857e0946c7503aea90f83a1d325bbe00de4c8661c9dce5d7394e5b833762ac34d0927e6949afd51608b4659fb20fb690300d93420

    • C:\mkldr

      Filesize

      212KB

      MD5

      de632df1f44b107d36cf3451d235ed3d

      SHA1

      cbb5154038adab656f74698579bef8014cb015a1

      SHA256

      195758963684e8aa635124f3a94d29b9fe537af164aa478375350901490e7e4f

      SHA512

      85d1b6d2242337e86f02284468281723093998277afbdbf13c36a13abe28c2ceebb3be7362c9d5e61edf65157d3b79cbd20f10bc5e64d8ead7d28683cedfe654

    • F:\AutoRun.inf

      Filesize

      69B

      MD5

      8e1598a9715ef3e68448813df8e82f4a

      SHA1

      020e696906646cffb4f5ef920e460cc603bdc867

      SHA256

      68cf63cd67b684da2fd0964b105bc4049dfd8723624deecabb3acc6059539cba

      SHA512

      5d31ac69962e83774011843eda18ac399a2d4cba82b247e60ea9f9b3327e4ca637d1ee1f0250beab1a5fbf79e35d447b89eb3de75377f0f5989e597a36a92884

    • memory/3260-56-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3260-71-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3260-34-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3260-33-0x0000000000400000-0x0000000000675000-memory.dmp

      Filesize

      2.5MB

    • memory/3260-141-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3260-127-0x0000000000400000-0x0000000000675000-memory.dmp

      Filesize

      2.5MB

    • memory/3260-84-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4024-7-0x0000000000460000-0x0000000000464000-memory.dmp

      Filesize

      16KB

    • memory/4024-0-0x0000000000400000-0x0000000000675000-memory.dmp

      Filesize

      2.5MB

    • memory/4024-28-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4024-5-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/4024-27-0x0000000000400000-0x0000000000675000-memory.dmp

      Filesize

      2.5MB

    • memory/5068-10-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/5068-12-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB