Analysis

  • max time kernel
    120s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2024 02:49

General

  • Target

    293fac3cfccd066eefe05554679ffdc2b15d7e1bd14d6287076d6d8830437195N.exe

  • Size

    269KB

  • MD5

    ed6c46e29d19fe16ede885f1e4e2f330

  • SHA1

    231c2efeda93e845d4e6f81841df7002086b47fe

  • SHA256

    293fac3cfccd066eefe05554679ffdc2b15d7e1bd14d6287076d6d8830437195

  • SHA512

    ddcc7e7dd6fc93fbaeedf7673a29d28780073dc5dcab9399541405352a4ba95e1ea1ff839c6927a34ac90c46bf825c934c6f4951559c1f90bb2081a4f0713523

  • SSDEEP

    6144:UkLqdufoPDamz1pLBV+UdvrEFp7hKECUxr:r4PDa6BjvrEH7f7r

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 7 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • UPX packed file 5 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
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\293fac3cfccd066eefe05554679ffdc2b15d7e1bd14d6287076d6d8830437195N.exe
    "C:\Users\Admin\AppData\Local\Temp\293fac3cfccd066eefe05554679ffdc2b15d7e1bd14d6287076d6d8830437195N.exe"
    1⤵
    • Loads dropped DLL
    • 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:2160
    • \??\c:\users\admin\appdata\local\temp\293fac3cfccd066eefe05554679ffdc2b15d7e1bd14d6287076d6d8830437195n.exe 
      c:\users\admin\appdata\local\temp\293fac3cfccd066eefe05554679ffdc2b15d7e1bd14d6287076d6d8830437195n.exe 
      2⤵
      • Executes dropped EXE
      PID:2724
    • C:\Windows\Resources\Themes\icsys.icn.exe
      C:\Windows\Resources\Themes\icsys.icn.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2928
      • \??\c:\windows\resources\themes\explorer.exe
        c:\windows\resources\themes\explorer.exe
        3⤵
        • Modifies visiblity of hidden/system files in Explorer
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2896
        • \??\c:\windows\resources\spoolsv.exe
          c:\windows\resources\spoolsv.exe SE
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2828
          • \??\c:\windows\resources\svchost.exe
            c:\windows\resources\svchost.exe
            5⤵
            • Modifies visiblity of hidden/system files in Explorer
            • Executes dropped EXE
            • Loads dropped DLL
            • Adds Run key to start application
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2628
            • \??\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:376
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 02:51 /f
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:1104
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 02:52 /f
              6⤵
              • System Location Discovery: System Language Discovery
              • Scheduled Task/Job: Scheduled Task
              PID:1936
        • C:\Windows\Explorer.exe
          C:\Windows\Explorer.exe
          4⤵
            PID:572

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      67KB

      MD5

      7574cf2c64f35161ab1292e2f532aabf

      SHA1

      14ba3fa927a06224dfe587014299e834def4644f

      SHA256

      de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

      SHA512

      4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

    • \Users\Admin\AppData\Local\Temp\293fac3cfccd066eefe05554679ffdc2b15d7e1bd14d6287076d6d8830437195n.exe 

      Filesize

      58KB

      MD5

      832a6fd998f6f6dace0941f6acfad12b

      SHA1

      0bef24216645af00191e6cc822d3c72f1004a37b

      SHA256

      abc85b051d14891171bcc30b3e02c12a2d1714c86d805157339372fce40facf4

      SHA512

      cff08e2fe975bc231c15068cae0406542f83243dc22507e0c929c419fd4b1841de01ecb892d15a416525c73d94a15138d939066148b885a6cd5476170bcf4fcd

    • \Windows\Resources\Themes\explorer.exe

      Filesize

      135KB

      MD5

      bc806954e0ea0ad8576c4473f176096f

      SHA1

      545216a44671d47cc85b0b324e82fbf87efabf50

      SHA256

      8d717ffe8d407b1caffc212403b3a01787228d9f17a0ed0019f73728df865660

      SHA512

      dd69aacb85276e8be9676dc727df5bcaa1c97b87d7f7c7e62ef24dd8e05ec464f1d87fb0d5d4e2ba03aa929a7670af9de9edb74fbf5300f53c04686ebfac25c6

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

      Filesize

      135KB

      MD5

      ea29b9f1dd98ab72fd6f074bcf2d3ddc

      SHA1

      9b9a005f084600229cb6442f4e7b5b08f950a6c8

      SHA256

      5675f911331872c2132b17c436308d80797535545c2a836a3d06e59daa65db62

      SHA512

      2fa968fad8e30ce39511ce730faa371396a52f2dbf4ae820d4d0f8a7a26babf02bbe906508a4cb192e1371119d2c36610cdabcfbeca21bd94d7e60f9fbf763b1

    • \Windows\Resources\spoolsv.exe

      Filesize

      135KB

      MD5

      a13c99f091b960f50d7999dbd426329c

      SHA1

      d016226b3f62b379e63cf8616fbddfd815bd9e04

      SHA256

      7e006318a2e1c230a7be54f5dfce3891e40ea33f6e2ac4bc6488334203197ef7

      SHA512

      febb72560e610625c0b6f164379c83f67df86ff1b00be960e506b35dd9b59108fca29b6d69136a2e95fff1bd61028ef01e7084a53a56085ed93c248a2665c5c3

    • \Windows\Resources\svchost.exe

      Filesize

      135KB

      MD5

      d2cb3869ba34bb766338c0c653fc7eb2

      SHA1

      7304492c3ebc75f8cbb196a93302824b89298822

      SHA256

      a6b7e8d2c440ddc440b6474f16d87db6459a68ac76447dbbb9d9d9daedfa9b8f

      SHA512

      c9886573679f2015d3f1de9d67456d0b4826701f22ff9077307c7e94b6d0e74da4a7301bad9c340f8460ca68b000dc8ecd171d7c156193eafad524879b485f65

    • memory/376-66-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2160-61-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2160-70-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2160-4-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2160-0-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2160-21-0x00000000003E0000-0x00000000003FF000-memory.dmp

      Filesize

      124KB

    • memory/2160-9-0x000000000040E000-0x0000000000411000-memory.dmp

      Filesize

      12KB

    • memory/2160-69-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2628-74-0x0000000000420000-0x000000000043F000-memory.dmp

      Filesize

      124KB

    • memory/2628-73-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2828-53-0x0000000000320000-0x000000000033F000-memory.dmp

      Filesize

      124KB

    • memory/2828-67-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2896-72-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2928-71-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/2928-32-0x0000000002250000-0x000000000226F000-memory.dmp

      Filesize

      124KB