Analysis

  • max time kernel
    180s
  • max time network
    201s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 10:03

General

  • Target

    22128bccb5f38d8b5108f6b644f71d58a11fb456d5a74e6c8eafe9d89a038524.exe

  • Size

    601KB

  • MD5

    aefd69c5738073ebe3858882a9dc324b

  • SHA1

    a6ddc448cdbf53eabac9c1938d4a840a229c81da

  • SHA256

    22128bccb5f38d8b5108f6b644f71d58a11fb456d5a74e6c8eafe9d89a038524

  • SHA512

    561d1f199f8739e87f5b8a9d43e1b10517b085e630fdbdf4cae603de13a30342976801fba7c7864f07b7c710a3cecf15768d7475d2b50530144c3d2c39c7bb3f

  • SSDEEP

    12288:xORNsuj7LM2e2Bl4St2AxKeAN+GKnvLof/9WraN0bfs3kZwD+ZAde:xsNsmM2lBmSt2A+yTof/YrdfqkZwD4Ak

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 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 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\22128bccb5f38d8b5108f6b644f71d58a11fb456d5a74e6c8eafe9d89a038524.exe
    "C:\Users\Admin\AppData\Local\Temp\22128bccb5f38d8b5108f6b644f71d58a11fb456d5a74e6c8eafe9d89a038524.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Users\Admin\AppData\Local\Temp\n8477\s8477.exe
      "C:\Users\Admin\AppData\Local\Temp\n8477\s8477.exe" 1ffcf837066bbfbb60adc6b0VNAYIQx60Zf6ocN+Za+Uf0IGeXLfj5kjr6LlzDyAFW2D0xrWiLACPw3V3KgDulquNE+IOCx2S31GCHhDyuKph0Py97NFNKrLP8/JBkaxV7M3KSX43PXPcwnMPEvD3YuTdKKCtArMh5A/7XoS1TVpgM3dOcBlkLWYWfurV4c= /v "C:\Users\Admin\AppData\Local\Temp\22128bccb5f38d8b5108f6b644f71d58a11fb456d5a74e6c8eafe9d89a038524.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2708

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n8477\s8477.exe

    Filesize

    349KB

    MD5

    f42490846128abad3a6504a02c9ef12c

    SHA1

    017da52f785d1385ee7fd9a5bcb2550096166385

    SHA256

    19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

    SHA512

    983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

  • C:\Users\Admin\AppData\Local\Temp\n8477\s8477.exe

    Filesize

    349KB

    MD5

    f42490846128abad3a6504a02c9ef12c

    SHA1

    017da52f785d1385ee7fd9a5bcb2550096166385

    SHA256

    19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

    SHA512

    983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

  • memory/2708-135-0x00007FF80F280000-0x00007FF80FCB6000-memory.dmp

    Filesize

    10.2MB

  • memory/2708-136-0x00000000012EA000-0x00000000012EF000-memory.dmp

    Filesize

    20KB

  • memory/2708-137-0x00000000012EA000-0x00000000012EF000-memory.dmp

    Filesize

    20KB