Analysis

  • max time kernel
    91s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/05/2023, 19:57

General

  • Target

    Susano.exe

  • Size

    4.7MB

  • MD5

    e510bcfba680e5c1eba10f46f53057b8

  • SHA1

    32589e836e9748db5a8d1c919be3c603fe5caad0

  • SHA256

    e315b87816d0f844ac2ad05136cf9755d4ba7a53b1080a84525418dc582b2ef9

  • SHA512

    fca9e45010a5fe61430519a77119a342c0f87b99bd7f110a63f0b3b2c1c608f1df97c1938cde61f33d429ca8b8f601c8f7eb29e6ce5f2c264b2f5ef50261ac9b

  • SSDEEP

    98304:TRBJj2opJUx8yCE0CgVPaCTGyH9/e7R0gVf3stq2kJcJozcJPm11ac:TRr2KzE0Cg5CEgVR2kcecJPk1

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.

  • Themida packer 5 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Susano.exe
    "C:\Users\Admin\AppData\Local\Temp\Susano.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 behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4148
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3248

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4148-133-0x00007FF68EFB0000-0x00007FF68FC5F000-memory.dmp

      Filesize

      12.7MB

    • memory/4148-134-0x00007FF68EFB0000-0x00007FF68FC5F000-memory.dmp

      Filesize

      12.7MB

    • memory/4148-135-0x00007FF68EFB0000-0x00007FF68FC5F000-memory.dmp

      Filesize

      12.7MB

    • memory/4148-136-0x00007FF68EFB0000-0x00007FF68FC5F000-memory.dmp

      Filesize

      12.7MB

    • memory/4148-137-0x00007FF68EFB0000-0x00007FF68FC5F000-memory.dmp

      Filesize

      12.7MB