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Analysis

  • max time kernel
    125s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2024, 12:25

General

  • Target

    2024-10-03_02b3b7cbeca8b30261003b522137e139_floxif_mafia.exe

  • Size

    2.5MB

  • MD5

    02b3b7cbeca8b30261003b522137e139

  • SHA1

    fbb4144f7f06fc4b9525fb8c43c2a97bc6b2bf47

  • SHA256

    840403f1825385de14bac52cb8901631f33af9db3162290a34b6e911fefc0754

  • SHA512

    af880e9d4b2382753e756436c11b93f250dde692ff736e95665e0dc6aba491be399f25916686de86a379f990b7106672371e34c12f6f1cf0e1f1bfdc60fc1af7

  • SSDEEP

    49152:XuIIK/ofs2hPd2l177BTK2VbDsar1YDjX:XjCfs2hPIl1/o

Malware Config

Signatures

  • 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 1 IoCs

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

  • UPX packed file 3 IoCs

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

  • Drops file in Program Files directory 1 IoCs
  • Program crash 3 IoCs
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-03_02b3b7cbeca8b30261003b522137e139_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-03_02b3b7cbeca8b30261003b522137e139_floxif_mafia.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
    PID:4200
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 924
      2⤵
      • Program crash
      PID:960
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 848
      2⤵
      • Program crash
      PID:1176
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 944
      2⤵
      • Program crash
      PID:1352
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4200 -ip 4200
    1⤵
      PID:1684
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4200 -ip 4200
      1⤵
        PID:1928
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4200 -ip 4200
        1⤵
          PID:1380
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4288,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=4380 /prefetch:8
          1⤵
            PID:3744

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            67KB

            MD5

            7574cf2c64f35161ab1292e2f532aabf

            SHA1

            14ba3fa927a06224dfe587014299e834def4644f

            SHA256

            de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

            SHA512

            4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

          • memory/4200-4-0x0000000010000000-0x0000000010030000-memory.dmp

            Filesize

            192KB

          • memory/4200-6-0x0000000000AC1000-0x0000000000AC2000-memory.dmp

            Filesize

            4KB

          • memory/4200-13-0x0000000010000000-0x0000000010030000-memory.dmp

            Filesize

            192KB

          • memory/4200-11-0x0000000000AC0000-0x0000000000D2A000-memory.dmp

            Filesize

            2.4MB