Analysis

  • max time kernel
    221s
  • max time network
    235s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2022 05:06

General

  • Target

    aee8df317acf19c8b0645de2ad4595d85281eeaeaf5b9b8f8786c647f8365de9.exe

  • Size

    569KB

  • MD5

    1da9a3e209139bef422041960aba6464

  • SHA1

    00f40230e43aeabb7ef3fb3332a29b59e95e24f9

  • SHA256

    aee8df317acf19c8b0645de2ad4595d85281eeaeaf5b9b8f8786c647f8365de9

  • SHA512

    f9d8c905ff143dac5b95be12afd21698795211a639b2977fa0f993221bf2ee86cc1eb8253433dda8e70c58ee559b92d094c75d8750cfa7ed7e1f7316b8621f23

Malware Config

Signatures

  • DiamondFox

    DiamondFox is a multipurpose botnet with many capabilities.

  • DiamondFox payload 3 IoCs

    Detects DiamondFox payload in file/memory.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks SCSI registry key(s) 3 TTPs 8 IoCs

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

  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aee8df317acf19c8b0645de2ad4595d85281eeaeaf5b9b8f8786c647f8365de9.exe
    "C:\Users\Admin\AppData\Local\Temp\aee8df317acf19c8b0645de2ad4595d85281eeaeaf5b9b8f8786c647f8365de9.exe"
    1⤵
    • Checks computer location settings
    • Checks SCSI registry key(s)
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4420
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:3420
      • C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe
        "C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe" 0
        2⤵
        • Executes dropped EXE
        • Checks SCSI registry key(s)
        • Suspicious use of SetWindowsHookEx
        PID:4800

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe

      Filesize

      569KB

      MD5

      1da9a3e209139bef422041960aba6464

      SHA1

      00f40230e43aeabb7ef3fb3332a29b59e95e24f9

      SHA256

      aee8df317acf19c8b0645de2ad4595d85281eeaeaf5b9b8f8786c647f8365de9

      SHA512

      f9d8c905ff143dac5b95be12afd21698795211a639b2977fa0f993221bf2ee86cc1eb8253433dda8e70c58ee559b92d094c75d8750cfa7ed7e1f7316b8621f23

    • C:\Users\Admin\AppData\Roaming\lsassfold\lsass.exe

      Filesize

      569KB

      MD5

      1da9a3e209139bef422041960aba6464

      SHA1

      00f40230e43aeabb7ef3fb3332a29b59e95e24f9

      SHA256

      aee8df317acf19c8b0645de2ad4595d85281eeaeaf5b9b8f8786c647f8365de9

      SHA512

      f9d8c905ff143dac5b95be12afd21698795211a639b2977fa0f993221bf2ee86cc1eb8253433dda8e70c58ee559b92d094c75d8750cfa7ed7e1f7316b8621f23

    • memory/3420-131-0x0000000000000000-mapping.dmp

    • memory/4420-130-0x0000000000400000-0x0000000000494000-memory.dmp

      Filesize

      592KB

    • memory/4420-132-0x0000000000400000-0x0000000000494000-memory.dmp

      Filesize

      592KB

    • memory/4420-139-0x0000000000A80000-0x0000000000A95000-memory.dmp

      Filesize

      84KB

    • memory/4420-141-0x0000000000400000-0x0000000000494000-memory.dmp

      Filesize

      592KB

    • memory/4800-136-0x0000000000000000-mapping.dmp

    • memory/4800-140-0x0000000000400000-0x0000000000494000-memory.dmp

      Filesize

      592KB

    • memory/4800-142-0x0000000000400000-0x0000000000494000-memory.dmp

      Filesize

      592KB

    • memory/4800-146-0x0000000000400000-0x0000000000494000-memory.dmp

      Filesize

      592KB

    • memory/4800-147-0x0000000000400000-0x0000000000494000-memory.dmp

      Filesize

      592KB