Analysis

  • max time kernel
    150s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2024 23:54

General

  • Target

    69f5f142de756ad4c292fb7d2006806c1482a7571c0402861d7485d7b1bedc97.exe

  • Size

    295KB

  • MD5

    52df9cab71705d8d32c8ca7a96512048

  • SHA1

    db1d09febfdc83b7596a69662a7fb399a0c1a09e

  • SHA256

    69f5f142de756ad4c292fb7d2006806c1482a7571c0402861d7485d7b1bedc97

  • SHA512

    ba111aec77fc17e531601edd86c1f3fd889fb7fa83a8015c289380c59c2b7f156f9cc83f97070f3862a64e2ecd4a202dd9cfc909135194a0aeae0d9c3f863a3b

  • SSDEEP

    6144:XpLqdufVUEAkC5sqDgJqBV+UdvrEFp7hKXc:5FUEAf2qBjvrEH7uc

Malware Config

Signatures

  • Floxif family
  • Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Detects Floxif payload 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • UPX packed file 3 IoCs

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

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 5 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 7 IoCs

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

  • Modifies registry class 18 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\69f5f142de756ad4c292fb7d2006806c1482a7571c0402861d7485d7b1bedc97.exe
    "C:\Users\Admin\AppData\Local\Temp\69f5f142de756ad4c292fb7d2006806c1482a7571c0402861d7485d7b1bedc97.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1032
    • \??\c:\users\admin\appdata\local\temp\69f5f142de756ad4c292fb7d2006806c1482a7571c0402861d7485d7b1bedc97.exe 
      c:\users\admin\appdata\local\temp\69f5f142de756ad4c292fb7d2006806c1482a7571c0402861d7485d7b1bedc97.exe 
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:396
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 2104
        3⤵
        • Program crash
        PID:4840
    • C:\Windows\Resources\Themes\icsys.icn.exe
      C:\Windows\Resources\Themes\icsys.icn.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:212
      • \??\c:\windows\resources\themes\explorer.exe
        c:\windows\resources\themes\explorer.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1692
        • \??\c:\windows\resources\spoolsv.exe
          c:\windows\resources\spoolsv.exe SE
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1460
          • \??\c:\windows\resources\svchost.exe
            c:\windows\resources\svchost.exe
            5⤵
            • Modifies visiblity of hidden/system files in Explorer
            • Executes dropped EXE
            • Adds Run key to start application
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2576
            • \??\c:\windows\resources\spoolsv.exe
              c:\windows\resources\spoolsv.exe PR
              6⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of SetWindowsHookEx
              PID:1740
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 396 -ip 396
    1⤵
      PID:3428

    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:\Users\Admin\AppData\Local\Temp\69f5f142de756ad4c292fb7d2006806c1482a7571c0402861d7485d7b1bedc97.exe 

      Filesize

      84KB

      MD5

      db88cea04959ef0e922c90b53738f37a

      SHA1

      cdc9e0c6ed27bfc798221cfc7a5316bf45e44493

      SHA256

      6031b6caa61889583058cfb76401cb7b26c8c739e013835cee9747c0634e9bd8

      SHA512

      61b69861844e45a671f156f7c391f749a414bd1726e3ab9b80644bc09c4d88941b7cade1b3ccd1a4eb6adf8fa34d9dc20fb0ad34981c5ccc00479d2fb259dd91

    • C:\Windows\Resources\Themes\icsys.icn.exe

      Filesize

      135KB

      MD5

      fd7f07ce3782f1174ed287d8c64cae2a

      SHA1

      aa50287c550d501d10166652355d8c7353c1bc39

      SHA256

      a0850d54d9c7ae00f91b82f8ede3a7b868640ccb8013fa7f9ddee3ac97811adf

      SHA512

      41012bf68924e588fbc69ad740578e35cdaf1b0c520ae2fac00ee069cfd054765d856b766b768d1c961f4a3f4f743ede0dbb698b946996f2eb537cc0d8d8c654

    • C:\Windows\Resources\spoolsv.exe

      Filesize

      135KB

      MD5

      fe723689e869e5b10596af9e1be9c651

      SHA1

      676e1877b0c836467e8dc866b22572824500c289

      SHA256

      dcf99c0176341d8a93599d7baef3b9c18882a58832d76c2a996331f36267a855

      SHA512

      c55218b5a321ae5f71d513d673c6f53d4f7e5bb8ee2721609142dee2ec175aad5528a8cc6fb9f1539c29595c09219332ca0ac3ebcb9465ccaa33961d76c86730

    • C:\Windows\Resources\svchost.exe

      Filesize

      135KB

      MD5

      5e1af2d2c3b4099080bb344b30849e06

      SHA1

      57c36033b9920eae394f52348c07cc9114438ab1

      SHA256

      897f29f0549cf7824eb3eeecf6c4a023eaf41b24fe7198640dc081e2d8524004

      SHA512

      95f2446c2acd9ca4bc8fa464429976a567f3a6eeae9be95aeb319319ae78c716ac1fd23ed65ac61e7165e55efa17980122fc9882c91b64afa546e0c8380f8014

    • \??\c:\windows\resources\themes\explorer.exe

      Filesize

      135KB

      MD5

      7689bc1fcb60f8ccc14250b3e9c7b0a4

      SHA1

      0da75311f85951f36e157c3262ba59ed191b6c09

      SHA256

      3fea267c34e140b06ec6fb1271a724bb201ef929096b6afceb2c40dd1d21ecf6

      SHA512

      ea5d332aa11144919b5c538132457ba74557d6826daef41422e92a965a3b1a4a690436c53fbbf8cff5a5bba62b36f80bd2a2169c7c23c57de69d9db481fa2fba

    • memory/212-63-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/212-19-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1032-5-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1032-0-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1032-68-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1032-67-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1460-42-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1460-62-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1692-72-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/1740-61-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2576-73-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB