Analysis

  • max time kernel
    108s
  • max time network
    108s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2024, 00:39

General

  • Target

    dbdd63359fbfc9c51b573c102a64e175e99d4aca9312da6d12b156ed1373290fN.exe

  • Size

    4.9MB

  • MD5

    661d0561ddceaf9ae6edf8a50b6c26c0

  • SHA1

    b1dd6be08f907050574f7102dfc83fd7223c0179

  • SHA256

    dbdd63359fbfc9c51b573c102a64e175e99d4aca9312da6d12b156ed1373290f

  • SHA512

    c8b342af6e7180f99a0acf5c77a60a5b2d58c49c884dd929238797e27b79de8d9dece2d4444a7349f1e84ff036852a94f09608be24e80c0c56e80cc043719474

  • SSDEEP

    49152:9m/xFnOvtaWIDn0a2qnqYQVMkL+q/vSWidGHp+NDGQUzbpDOfjxAkrQKl+RPAFIA:uaklJKvS0Hpe4zbpaAKQkroGIC

Malware Config

Signatures

  • Renames multiple (316) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dbdd63359fbfc9c51b573c102a64e175e99d4aca9312da6d12b156ed1373290fN.exe
    "C:\Users\Admin\AppData\Local\Temp\dbdd63359fbfc9c51b573c102a64e175e99d4aca9312da6d12b156ed1373290fN.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Windows\SysWOW64\sysx32.exe
      C:\Windows\system32\sysx32.exe /scan
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:556
    • C:\Users\Admin\AppData\Local\Temp\_dbdd63359fbfc9c51b573c102a64e175e99d4aca9312da6d12b156ed1373290fN.exe
      C:\Users\Admin\AppData\Local\Temp\_dbdd63359fbfc9c51b573c102a64e175e99d4aca9312da6d12b156ed1373290fN.exe
      2⤵
      • Executes dropped EXE
      PID:2156

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Program Files\7-Zip\7z.exe

          Filesize

          4.9MB

          MD5

          faf1118ab8493df7829c59f7ef8ba26a

          SHA1

          be7437a5650ff6628aa4aaa872afd8499db3c652

          SHA256

          5c3b146c18b16b4a8db02453e04b455be394681cf9870e97e2fa253482c7cf2e

          SHA512

          e124b0f46101882a40b475280d2e0152c6b861a43d0b8377e4adc15c96e73ee04b4a09faf3f23087c0d11c653441e6d42022c0c2a92f75a26389233f4185516e

        • C:\Users\Admin\AppData\Local\Temp\_dbdd63359fbfc9c51b573c102a64e175e99d4aca9312da6d12b156ed1373290fN.exe

          Filesize

          4.9MB

          MD5

          84aa72f040ae8f9e022bc1e9f7239d68

          SHA1

          316a576cacc2cf63e8c698dcd5ee66be0b88643d

          SHA256

          6faacf875bf79d89a97296dba832a12eedfb44dde44d8119e3e212a8afa7d5b7

          SHA512

          4314af0eb37069c7c61ca57f8fe5bedf61524e6fed2a4d3b40b63c8abb1dff12ea00cda864c31106b8af34863d379f8428e3e7942b3edb7b58e325c15bc58e71

        • C:\Windows\SysWOW64\sysx32.exe

          Filesize

          4.9MB

          MD5

          661d0561ddceaf9ae6edf8a50b6c26c0

          SHA1

          b1dd6be08f907050574f7102dfc83fd7223c0179

          SHA256

          dbdd63359fbfc9c51b573c102a64e175e99d4aca9312da6d12b156ed1373290f

          SHA512

          c8b342af6e7180f99a0acf5c77a60a5b2d58c49c884dd929238797e27b79de8d9dece2d4444a7349f1e84ff036852a94f09608be24e80c0c56e80cc043719474

        • memory/556-960-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/556-961-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/556-2687-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/556-2688-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/556-2689-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/556-2690-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/1500-0-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB

        • memory/1500-62-0x0000000000400000-0x0000000000411000-memory.dmp

          Filesize

          68KB