Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/07/2024, 12:26

General

  • Target

    2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia.exe

  • Size

    2.5MB

  • MD5

    307eb5a0dd1d6f2cda15c61d8924b290

  • SHA1

    5731f812a2a59ec6fd122e7b669c7b6b1847f2c9

  • SHA256

    549c33c13f2a0b44eaa7067c07d6ac0220251d99e56337b615aefaad7bd55153

  • SHA512

    c39a2c7e5ac15ddbad6b014330bd997f7b2a692e23675fed7782762bdbf926cc4b788ec0856eed8fd54102cbe32353ba7b407fea694bfcfba717cb97011d11e9

  • SSDEEP

    49152:suIIKkofs2hPd2l177BTK2VbDsar1YDjF:sjhfs2hPIl1/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
  • UPX packed file 3 IoCs

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

  • 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 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\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-28_307eb5a0dd1d6f2cda15c61d8924b290_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:556
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 912
      2⤵
      • Program crash
      PID:988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 848
      2⤵
      • Program crash
      PID:4668
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 556 -s 856
      2⤵
      • Program crash
      PID:2520
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 556 -ip 556
    1⤵
      PID:4440
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 556 -ip 556
      1⤵
        PID:1368
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 556 -ip 556
        1⤵
          PID:4044

        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

              • memory/556-4-0x0000000010000000-0x0000000010030000-memory.dmp

                Filesize

                192KB

              • memory/556-6-0x00000000005A1000-0x00000000005A2000-memory.dmp

                Filesize

                4KB

              • memory/556-11-0x00000000005A0000-0x000000000080A000-memory.dmp

                Filesize

                2.4MB

              • memory/556-13-0x0000000010000000-0x0000000010030000-memory.dmp

                Filesize

                192KB