Analysis

  • max time kernel
    146s
  • max time network
    113s
  • platform
    windows7_x64
  • resource
    win7-20230703-en
  • resource tags

    arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
  • submitted
    04/07/2023, 15:54

General

  • Target

    svchostexe.exe

  • Size

    7.1MB

  • MD5

    716c1920c48cf67eb21212edea8ba36d

  • SHA1

    9427c93730422107832f42c1c7f34a1dd21dadb8

  • SHA256

    1a5ef68208365f3575fb08d6fba84b3a8a6564cec61db97279a8574522defe7c

  • SHA512

    5374086c6cb5171e42399077fbb37160be3f879c1d706f5fd9882272555d83aacf788d3b5e354f8c2c4b5209b42b7cedf1cc8bfa93182e257e915cd82b230746

  • SSDEEP

    196608:hDcUG4raKu24YY7HVT4hV0AD6QgqKRgX:HmKr4YYH+EUWpgX

Malware Config

Signatures

  • 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.

  • Loads dropped DLL 1 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Themida packer 6 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\svchostexe.exe
    "C:\Users\Admin\AppData\Local\Temp\svchostexe.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:2304
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2304 -s 1096
      2⤵
      • Program crash
      PID:1596

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\99096b4b-3055-4c6a-a348-9f002740163e\AgileDotNetRT64.dll

          Filesize

          4.2MB

          MD5

          05b012457488a95a05d0541e0470d392

          SHA1

          74f541d6a8365508c794ef7b4ac7c297457f9ce3

          SHA256

          1f77a0749ac730500f203b8c4d072587923ac679e184a3859aeb855c2a2e7d8d

          SHA512

          6d6e7b838d4425d49ac8d3738135374ef5357f0677b07cecb7afbf5feddc1997bf6dce68d48787eff8a74c4728def8880c8f01842eda35b5815fb561fa401ae6

        • \Users\Admin\AppData\Local\Temp\99096b4b-3055-4c6a-a348-9f002740163e\AgileDotNetRT64.dll

          Filesize

          4.2MB

          MD5

          05b012457488a95a05d0541e0470d392

          SHA1

          74f541d6a8365508c794ef7b4ac7c297457f9ce3

          SHA256

          1f77a0749ac730500f203b8c4d072587923ac679e184a3859aeb855c2a2e7d8d

          SHA512

          6d6e7b838d4425d49ac8d3738135374ef5357f0677b07cecb7afbf5feddc1997bf6dce68d48787eff8a74c4728def8880c8f01842eda35b5815fb561fa401ae6

        • memory/2304-54-0x00000000000E0000-0x00000000007FE000-memory.dmp

          Filesize

          7.1MB

        • memory/2304-61-0x000000001B550000-0x000000001B5D0000-memory.dmp

          Filesize

          512KB

        • memory/2304-62-0x000007FEF2EE0000-0x000007FEF3A64000-memory.dmp

          Filesize

          11.5MB

        • memory/2304-64-0x000007FEF2EE0000-0x000007FEF3A64000-memory.dmp

          Filesize

          11.5MB

        • memory/2304-72-0x000007FEF6A30000-0x000007FEF6B5C000-memory.dmp

          Filesize

          1.2MB

        • memory/2304-73-0x0000000000BC0000-0x0000000000BCA000-memory.dmp

          Filesize

          40KB

        • memory/2304-74-0x000007FEF2EE0000-0x000007FEF3A64000-memory.dmp

          Filesize

          11.5MB

        • memory/2304-75-0x000000001B550000-0x000000001B5D0000-memory.dmp

          Filesize

          512KB

        • memory/2304-83-0x000007FEF2EE0000-0x000007FEF3A64000-memory.dmp

          Filesize

          11.5MB