Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/08/2024, 01:22

General

  • Target
    2024-08-22_9f1f924d9effd58beb71343aaa72c958_floxif_icedid.exe
  • Size 4.5MB
  • Sample240822-brqt2a1drd
  • SHA256 0c041ee62515fe71661338a348e106b18b493f7b9e08402b576b57e7d1670a86
  • MD5 SHA1 SHA512 SSDEEP

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 7 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 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-22_9f1f924d9effd58beb71343aaa72c958_floxif_icedid.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-22_9f1f924d9effd58beb71343aaa72c958_floxif_icedid.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1172

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        symsrv.dll

        • Path C:\Program Files\Common Files\System\symsrv.dll
        • Size 67KB
        • SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
        • MD5 SHA1 SHA512 SSDEEP

        symsrv.dll.000

        • Path C:\Program Files\Common Files\System\symsrv.dll.000
        • Size 175B
        • SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
        • MD5 SHA1 SHA512

        memory/1172-12-0x0000000076290000-0x00000000762F3000-memory.dmp

        memory/1172-11-0x00000000762A5000-0x00000000762A6000-memory.dmp

        memory/1172-15-0x0000000076290000-0x00000000762F3000-memory.dmp

        memory/1172-16-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1172-17-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1172-18-0x0000000076290000-0x00000000762F3000-memory.dmp

        memory/1172-23-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1172-4-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1172-28-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1172-34-0x0000000010000000-0x0000000010030000-memory.dmp

        memory/1172-40-0x0000000076290000-0x00000000762F3000-memory.dmp

        memory/1172-42-0x0000000076290000-0x00000000762F3000-memory.dmp