Analysis

  • max time kernel
    63s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 12:50

General

  • Target

    8a866c87652756eaf0a67942e7e09a2fce54e06d6f28381648a3981bc94d0782.exe

  • Size

    601KB

  • MD5

    73e69d0d1b4e83e606cdf42dcb491a0e

  • SHA1

    c983a00ebfb2c44aad69926f53feb618afa31c8d

  • SHA256

    8a866c87652756eaf0a67942e7e09a2fce54e06d6f28381648a3981bc94d0782

  • SHA512

    89e7b7327c5c4cf537b71bc99265d8ecc214e0e05d48ad55cbce25fc3493f459731c3886ab3fc9c825710df6c73424459eb89fc71df5a6b6e1a8388ffb04b0d7

  • SSDEEP

    12288:xORNsuj7LM2e2Bl4St2AxKeAN+GKnvLof/9WraN0bfs3kZwD+ZAdA:xsNsmM2lBmSt2A+yTof/YrdfqkZwD4AO

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8a866c87652756eaf0a67942e7e09a2fce54e06d6f28381648a3981bc94d0782.exe
    "C:\Users\Admin\AppData\Local\Temp\8a866c87652756eaf0a67942e7e09a2fce54e06d6f28381648a3981bc94d0782.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Loads dropped DLL
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Users\Admin\AppData\Local\Temp\n9589\s9589.exe
      "C:\Users\Admin\AppData\Local\Temp\n9589\s9589.exe" bc4248b2e1d133d5991cafc3BfRA5bBe8nCwoydGwnuPruSMlmPvmLiUHcbHZDXWhoZZK99Md12llCBveefY+u+vqPuDOq1f43Q26e9w/CCWjGJBjQz/cQOEFCgrMfhI4Vj+zTwkxFMLEpqh1BVViaOPhLiodEPk/61dCv6RgF7JPHg= /v "C:\Users\Admin\AppData\Local\Temp\8a866c87652756eaf0a67942e7e09a2fce54e06d6f28381648a3981bc94d0782.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:576

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n9589\s9589.exe

          Filesize

          349KB

          MD5

          f42490846128abad3a6504a02c9ef12c

          SHA1

          017da52f785d1385ee7fd9a5bcb2550096166385

          SHA256

          19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

          SHA512

          983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

        • C:\Users\Admin\AppData\Local\Temp\n9589\s9589.exe

          Filesize

          349KB

          MD5

          f42490846128abad3a6504a02c9ef12c

          SHA1

          017da52f785d1385ee7fd9a5bcb2550096166385

          SHA256

          19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

          SHA512

          983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

        • \Users\Admin\AppData\Local\Temp\n9589\s9589.exe

          Filesize

          349KB

          MD5

          f42490846128abad3a6504a02c9ef12c

          SHA1

          017da52f785d1385ee7fd9a5bcb2550096166385

          SHA256

          19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

          SHA512

          983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

        • \Users\Admin\AppData\Local\Temp\n9589\s9589.exe

          Filesize

          349KB

          MD5

          f42490846128abad3a6504a02c9ef12c

          SHA1

          017da52f785d1385ee7fd9a5bcb2550096166385

          SHA256

          19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

          SHA512

          983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

        • \Users\Admin\AppData\Local\Temp\n9589\s9589.exe

          Filesize

          349KB

          MD5

          f42490846128abad3a6504a02c9ef12c

          SHA1

          017da52f785d1385ee7fd9a5bcb2550096166385

          SHA256

          19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

          SHA512

          983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

        • \Users\Admin\AppData\Local\Temp\n9589\s9589.exe

          Filesize

          349KB

          MD5

          f42490846128abad3a6504a02c9ef12c

          SHA1

          017da52f785d1385ee7fd9a5bcb2550096166385

          SHA256

          19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

          SHA512

          983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

        • memory/576-62-0x000007FEF2BD0000-0x000007FEF35F3000-memory.dmp

          Filesize

          10.1MB

        • memory/576-63-0x000007FEEE690000-0x000007FEEF726000-memory.dmp

          Filesize

          16.6MB

        • memory/576-64-0x0000000000180000-0x0000000000200000-memory.dmp

          Filesize

          512KB

        • memory/576-65-0x0000000000180000-0x0000000000200000-memory.dmp

          Filesize

          512KB

        • memory/576-66-0x000007FEED800000-0x000007FEEE68F000-memory.dmp

          Filesize

          14.6MB

        • memory/576-67-0x000007FEF28E0000-0x000007FEF2BCA000-memory.dmp

          Filesize

          2.9MB

        • memory/1824-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

          Filesize

          8KB