Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    27-04-2024 23:49

General

  • Target

    F.U.N/cheeto.exe

  • Size

    4.0MB

  • MD5

    a845ed96ffe13bcb8cdeb3d7d8acb272

  • SHA1

    381f00cc8aeff1e4a84812ce8f0b574f3fc9b158

  • SHA256

    3412caf95e6244db7c27bcc863f3e696b6a97d903b78065428cc4805381446d7

  • SHA512

    c568a2788c843de6b91ed9f0df1f14ef5a1817871cab12267c8cbab722464783f4731b3cea17e7b89fd5695101f9e89ed0bd0f7e028b9c09f17a2d2a8d418c29

  • SSDEEP

    98304:k6t+F5JfI1y+uGFMMU5U5jBJyXRy8ebQN2Knr69USNpBsEF:k6t+BA6GS5U5dMXibO2KumSbBsa

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 10 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\F.U.N\cheeto.exe
    "C:\Users\Admin\AppData\Local\Temp\F.U.N\cheeto.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Sets service image path in registry
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies system certificate store
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\F.U.N\cheeto.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2536
      • C:\Windows\system32\certutil.exe
        certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\F.U.N\cheeto.exe" MD5
        3⤵
          PID:2456
        • C:\Windows\system32\find.exe
          find /i /v "md5"
          3⤵
            PID:2696
          • C:\Windows\system32\find.exe
            find /i /v "certutil"
            3⤵
              PID:2600

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2932-0-0x000000013FE10000-0x000000014087B000-memory.dmp

          Filesize

          10.4MB

        • memory/2932-1-0x00000000778A0000-0x0000000077A49000-memory.dmp

          Filesize

          1.7MB

        • memory/2932-2-0x000000013FE10000-0x000000014087B000-memory.dmp

          Filesize

          10.4MB

        • memory/2932-3-0x000000013FE10000-0x000000014087B000-memory.dmp

          Filesize

          10.4MB

        • memory/2932-4-0x000000013FE10000-0x000000014087B000-memory.dmp

          Filesize

          10.4MB

        • memory/2932-5-0x000000013FE10000-0x000000014087B000-memory.dmp

          Filesize

          10.4MB

        • memory/2932-6-0x000000013FE10000-0x000000014087B000-memory.dmp

          Filesize

          10.4MB

        • memory/2932-8-0x000000013FE10000-0x000000014087B000-memory.dmp

          Filesize

          10.4MB

        • memory/2932-7-0x000000013FE10000-0x000000014087B000-memory.dmp

          Filesize

          10.4MB

        • memory/2932-24-0x000000013FE10000-0x000000014087B000-memory.dmp

          Filesize

          10.4MB

        • memory/2932-25-0x000000013FE10000-0x000000014087B000-memory.dmp

          Filesize

          10.4MB

        • memory/2932-26-0x00000000778A0000-0x0000000077A49000-memory.dmp

          Filesize

          1.7MB