Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-06-2024 22:17

General

  • Target

    5689bff09fb7baab355dd6f7062b00e24050c6234af0d0a159de1a4c2202b969.exe

  • Size

    2.5MB

  • MD5

    8cd04ae4856d169cae59d16a72b587f5

  • SHA1

    3a5e7c94b6d2469ae700a9d58c4c4a4507ea3fd0

  • SHA256

    5689bff09fb7baab355dd6f7062b00e24050c6234af0d0a159de1a4c2202b969

  • SHA512

    df5f41ad7de876a28ebb85f1ebed238c2f888a2e5bb15f8058d7158750c34c4b2d0c229cb7a51f9facbad76af95493d6eff8c18f97a3291cd6d6aae589e9adf3

  • SSDEEP

    49152:MxmvumkQ9lY9sgUXdTPSxdQ8KX75IyuWuCjcCqWOyxU:Mxx9NUFkQx753uWuCyyxU

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Detects executables packed with Themida 18 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
  • Checks BIOS information in registry 2 TTPs 10 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Themida packer 18 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 5 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Drops file in Windows directory 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5689bff09fb7baab355dd6f7062b00e24050c6234af0d0a159de1a4c2202b969.exe
    "C:\Users\Admin\AppData\Local\Temp\5689bff09fb7baab355dd6f7062b00e24050c6234af0d0a159de1a4c2202b969.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
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3552
    • \??\c:\windows\resources\themes\explorer.exe
      c:\windows\resources\themes\explorer.exe
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3220
      • \??\c:\windows\resources\spoolsv.exe
        c:\windows\resources\spoolsv.exe SE
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:768
        • \??\c:\windows\resources\svchost.exe
          c:\windows\resources\svchost.exe
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in System32 directory
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:984
          • \??\c:\windows\resources\spoolsv.exe
            c:\windows\resources\spoolsv.exe PR
            5⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetWindowsHookEx
            PID:4532

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Resources\Themes\explorer.exe
    Filesize

    2.5MB

    MD5

    127d0b386ddd86e105992092e8740dcc

    SHA1

    74483d6e5cb7c43623cd8e2e55506ac99d853e4d

    SHA256

    cffe3d7f75baff050a75a0fb57a69cc491604826cc87eccc4b368155cf411b55

    SHA512

    1b3cfe652c08cb463c406332b0ab3dd82e0316d0f4a6e3fa9144bb627d341e8871c2cb27e0d3ac012922b85bbf9580499182b991eb35e801c1801a281601a4ff

  • C:\Windows\Resources\spoolsv.exe
    Filesize

    2.5MB

    MD5

    33952705473f33187489f6edeebb1dbe

    SHA1

    d5bfa33226abad8b703f9188b6ce39a3680a2cc6

    SHA256

    7a39b950c71683c120f3ed4473989c55bf13fea01164470fda5c3d0a4d358db3

    SHA512

    9d5cf33922cd958ac2bf42d220558e6d0cd8afec4ffaecd2c00471f6e2a21ac385cdd15eba628feae3bd7e072e93baceb8cb58e95d811b26b037f8dde3328226

  • C:\Windows\Resources\svchost.exe
    Filesize

    2.5MB

    MD5

    9a4c8e1f8ed361759e7cdd6c6ef0c15d

    SHA1

    0e2da952bccfab75e059b0add55107d70feda531

    SHA256

    79b9780d97554faea8c0d4cdb1bf279731fb31877f35d95e433bf099511bb9d2

    SHA512

    423d1d97fb0bba2f23a54c603938b3a4a816bc231328070bf1a6959359345008eef906ba2c16b3f2345da584767fd1a20aab1712f5eba78ce75365169ca0b9ab

  • memory/768-41-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/768-19-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/984-65-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/984-63-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/984-28-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/984-44-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/3220-43-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/3220-45-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/3220-50-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/3220-56-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/3220-10-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/3552-42-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/3552-0-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/3552-1-0x0000000077C34000-0x0000000077C36000-memory.dmp
    Filesize

    8KB

  • memory/4532-38-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB

  • memory/4532-33-0x0000000000400000-0x0000000000A0E000-memory.dmp
    Filesize

    6.1MB