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Analysis

  • max time kernel
    93s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/12/2024, 13:38

General

  • Target

    loader1.exe

  • Size

    19.6MB

  • MD5

    fcfb2668c205cf6b25b256420ace004e

  • SHA1

    b3b696adff3cc0fc12f027347b582aa9cd7d5f20

  • SHA256

    4e3931657ed3103acf45c9356d5ef5648298cbfc5d11f8dd407b94e776c14fd5

  • SHA512

    9c577770ca4de729fb55420936802a21f02a765404e7faffc17aaa25bfee45bdfe8e606e0255530f3d01276c3729d285df748790449531eca5e6a393f1440297

  • SSDEEP

    393216:vNVL8SLSsbPpiZ8XtX64nYjRG3CA8d6i67sYppz6cvt2dL:1VLxTp2etX2Y3id45pz8L

Malware Config

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Remcos family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 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 11 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\loader1.exe
    "C:\Users\Admin\AppData\Local\Temp\loader1.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      2⤵
        PID:2848

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1680-0-0x00007FF6EEE20000-0x00007FF6F0FCB000-memory.dmp

      Filesize

      33.7MB

    • memory/1680-2-0x00007FFA7C9D0000-0x00007FFA7C9D2000-memory.dmp

      Filesize

      8KB

    • memory/1680-1-0x00007FF6EEE20000-0x00007FF6F0FCB000-memory.dmp

      Filesize

      33.7MB

    • memory/1680-3-0x00007FF6EEE20000-0x00007FF6F0FCB000-memory.dmp

      Filesize

      33.7MB

    • memory/1680-4-0x00007FF6EEE20000-0x00007FF6F0FCB000-memory.dmp

      Filesize

      33.7MB

    • memory/1680-5-0x00007FF6EEE20000-0x00007FF6F0FCB000-memory.dmp

      Filesize

      33.7MB

    • memory/1680-7-0x00007FF6EEE20000-0x00007FF6F0FCB000-memory.dmp

      Filesize

      33.7MB

    • memory/1680-6-0x00007FF6EEE20000-0x00007FF6F0FCB000-memory.dmp

      Filesize

      33.7MB

    • memory/1680-8-0x00007FF6EEE20000-0x00007FF6F0FCB000-memory.dmp

      Filesize

      33.7MB

    • memory/1680-9-0x00007FF6EEE20000-0x00007FF6F0FCB000-memory.dmp

      Filesize

      33.7MB

    • memory/1680-10-0x00007FF6EEE20000-0x00007FF6F0FCB000-memory.dmp

      Filesize

      33.7MB

    • memory/1680-12-0x00007FF6EEE20000-0x00007FF6F0FCB000-memory.dmp

      Filesize

      33.7MB