Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    24-12-2024 18:24

General

  • Target

    2024-12-24_35e233a289c290ee5ee457d64efe7cec_floxif_icedid.exe

  • Size

    1.1MB

  • MD5

    35e233a289c290ee5ee457d64efe7cec

  • SHA1

    0efca0f40931f848f02ef77b69b9b1425ec38548

  • SHA256

    f8a0151f1ad3586afe8977411d13e99e10c29f2582292a9a6391e55a2974162a

  • SHA512

    af1ccb92c594dbe95e40d89529d396367cc681d47df7bbd34888701e322aa76fb14c223cde11be69b22ffb581bd752cc39abdfe5ee5f8444ba4eb6efb38544c3

  • SSDEEP

    24576:ocuN8UML/cD26ZmU4YTtv+uWsHDCrEH7y:Vui/2pZQYTw1sQ

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
  • Downloads MZ/PE file
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • 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 8 IoCs

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

  • Drops file in Program Files directory 2 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-24_35e233a289c290ee5ee457d64efe7cec_floxif_icedid.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-24_35e233a289c290ee5ee457d64efe7cec_floxif_icedid.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
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2944

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\Common Files\System\symsrv.dll.000

      Filesize

      175B

      MD5

      1130c911bf5db4b8f7cf9b6f4b457623

      SHA1

      48e734c4bc1a8b5399bff4954e54b268bde9d54c

      SHA256

      eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

      SHA512

      94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

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

      Filesize

      67KB

      MD5

      7574cf2c64f35161ab1292e2f532aabf

      SHA1

      14ba3fa927a06224dfe587014299e834def4644f

      SHA256

      de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

      SHA512

      4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

    • memory/3004-3-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3004-5-0x0000000000465000-0x0000000000468000-memory.dmp

      Filesize

      12KB

    • memory/3004-11-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3004-15-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3004-18-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3004-23-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3004-26-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3004-27-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB