Resubmissions

03/03/2025, 13:50

250303-q5agjay1c1 10

Analysis

  • max time kernel
    66s
  • max time network
    64s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250217-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250217-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    03/03/2025, 13:50

General

  • Target

    Floxif.exe

  • Size

    532KB

  • MD5

    00add4a97311b2b8b6264674335caab6

  • SHA1

    3688de985909cc9f9fa6e0a4f2e43d986fe6d0ec

  • SHA256

    812af0ec9e1dfd8f48b47fd148bafe6eecb42d0a304bc0e4539750dd23820a7f

  • SHA512

    aaf5dae929e6b5809b77b6a79ab833e548b66fb628afeb20b554d678947494a6804cb3d59bf6bbcb2b14cede1a0609aa41f8e7fe8a7999d578e8b7af7144cb70

  • SSDEEP

    12288:l86GkvJFajbhjTpHjq0dfpT1Oc02XEfGdnGwVUNUnEnAE3F:l8lT9PdpwO0fkGwVUSnEnAoF

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
  • 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.

  • Drops file in Program Files directory 1 IoCs
  • Program crash 1 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.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\Floxif.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1632
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1632 -s 484
      2⤵
      • Program crash
      PID:1164
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1632 -ip 1632
    1⤵
      PID:3604
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /7
      1⤵
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3276

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      72KB

      MD5

      ccf7e487353602c57e2e743d047aca36

      SHA1

      99f66919152d67a882685a41b7130af5f7703888

      SHA256

      eaf76e5f1a438478ecf7b678744da34e9d9e5038b128f0c595672ee1dbbfd914

      SHA512

      dde0366658082b142faa6487245bfc8b8942605f0ede65d12f8c368ff3673ca18e416a4bf132c4bee5be43e94aef0531be2008746c24f1e6b2f294a63ab1486c

    • memory/1632-4-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1632-6-0x0000000000AB0000-0x0000000000B25000-memory.dmp

      Filesize

      468KB

    • memory/1632-8-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3276-9-0x0000012A7DD80000-0x0000012A7DD81000-memory.dmp

      Filesize

      4KB

    • memory/3276-10-0x0000012A7DD80000-0x0000012A7DD81000-memory.dmp

      Filesize

      4KB

    • memory/3276-11-0x0000012A7DD80000-0x0000012A7DD81000-memory.dmp

      Filesize

      4KB

    • memory/3276-15-0x0000012A7DD80000-0x0000012A7DD81000-memory.dmp

      Filesize

      4KB

    • memory/3276-18-0x0000012A7DD80000-0x0000012A7DD81000-memory.dmp

      Filesize

      4KB

    • memory/3276-21-0x0000012A7DD80000-0x0000012A7DD81000-memory.dmp

      Filesize

      4KB

    • memory/3276-20-0x0000012A7DD80000-0x0000012A7DD81000-memory.dmp

      Filesize

      4KB

    • memory/3276-19-0x0000012A7DD80000-0x0000012A7DD81000-memory.dmp

      Filesize

      4KB

    • memory/3276-17-0x0000012A7DD80000-0x0000012A7DD81000-memory.dmp

      Filesize

      4KB

    • memory/3276-16-0x0000012A7DD80000-0x0000012A7DD81000-memory.dmp

      Filesize

      4KB