Analysis

  • max time kernel
    150s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-06-2024 07:09

General

  • Target

    b32b461300613ce316a0d09a974e13acf2296c86050b747b5e679ea236f47bee.exe

  • Size

    2.5MB

  • MD5

    63ca0c5ebebb808b1f6c75fb1912616c

  • SHA1

    78ee18e27107f8bde55e8f3b8e8d4da563e52b66

  • SHA256

    b32b461300613ce316a0d09a974e13acf2296c86050b747b5e679ea236f47bee

  • SHA512

    e8e2be4ddca4c3e07f8f3b82bf2a8c75db18243254f5306d3fe74d5cb4b47d7a26888d8c63b9fba1f28ca64888e278b8a40d98a58bdcd1eb79a9c8451fc99e82

  • SSDEEP

    49152:hxmvumkQ9lY9sgUXdTPSxdQ8KX75IyuWuCjcCqWOyxH:hxx9NUFkQx753uWuCyyxH

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Detects executables packed with Themida 17 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 17 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\b32b461300613ce316a0d09a974e13acf2296c86050b747b5e679ea236f47bee.exe
    "C:\Users\Admin\AppData\Local\Temp\b32b461300613ce316a0d09a974e13acf2296c86050b747b5e679ea236f47bee.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:1976
    • \??\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:1396
      • \??\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:372
        • \??\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:4296
          • \??\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:1132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2.5MB

    MD5

    fd583de1d7a1f183ec2e67762726000e

    SHA1

    b8b86524c244d7618be1332a0ff884ae13645d40

    SHA256

    65ffa68e274aae8ae88206f9f8f6f53071247284e204eacd8c04a56de395c251

    SHA512

    7e846ccdb412dae24c722aae2228985321f29d7ecf6e63815adf56a013d658c4c1dc7339a147175bf71eadc4e6adc886fd1cec8a059c3b1caeb8997d83dbca87

  • C:\Windows\Resources\spoolsv.exe

    Filesize

    2.5MB

    MD5

    72f4b2b6a90b66ac4026fa76532c3da4

    SHA1

    79e10294c6a0b3a9c6a7bb62f3968f781279ba9f

    SHA256

    5cfa8884af006765bace66813902726c76433c30dc1b33b8028e61f50939cc89

    SHA512

    3e911bafdcf486c85818caf62504bd16db9a390e4aa09379ea3bb1d5a41eb0f61b66ee3d0739c1598df1705e2b29ee5530a28b1586838f2f6d93bd660e95b204

  • C:\Windows\Resources\svchost.exe

    Filesize

    2.5MB

    MD5

    ac971bd91a9b9de47588572d8dfd2e4c

    SHA1

    a933d9cd61c7846c201eeecaa110e33fd39abf68

    SHA256

    f5c5fb06d996703b41a1857f45ed02d4059ca1f7e80625e81a23377a6c23e3ac

    SHA512

    73184ad94016a65a7320b9fae66d777980a9f5c888ab8830b5bbc0004262f991ddf88b92f11f7e488c4c3d00ea499fe4f48668d01acc9651a6cd92bc45fc08f6

  • memory/372-19-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/372-39-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/1132-33-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/1132-37-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/1396-10-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/1396-42-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/1396-44-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/1396-56-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/1976-0-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/1976-1-0x0000000077D04000-0x0000000077D06000-memory.dmp

    Filesize

    8KB

  • memory/1976-41-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/4296-28-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/4296-43-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/4296-47-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB

  • memory/4296-51-0x0000000000400000-0x0000000000A0E000-memory.dmp

    Filesize

    6.1MB