Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2022, 13:21

General

  • Target

    d1ba2091c52a840e80a8563a3870cc2b1bad41c9d205e19d4e845ee4f774db80.exe

  • Size

    64KB

  • MD5

    656c54728398b591a5cfac76d206e097

  • SHA1

    13fb21e405360dba19a264b482276676bc51f49f

  • SHA256

    d1ba2091c52a840e80a8563a3870cc2b1bad41c9d205e19d4e845ee4f774db80

  • SHA512

    255c5417327c7e05ac7638323556bfa8763a660adad8120f6d43944154d100d1b7bd81e34c8fdc26c25b4ab8188023298f88238539acb6096406178cabcb0587

  • SSDEEP

    768:bBwa3wLSqZkETG/j53wbU4oF4/EOi97emHGqn5DLDdQOn2skZI:r3wLSeK/FqU4/PHmHGq5DndQ0272

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Unexpected DNS network traffic destination 5 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d1ba2091c52a840e80a8563a3870cc2b1bad41c9d205e19d4e845ee4f774db80.exe
    "C:\Users\Admin\AppData\Local\Temp\d1ba2091c52a840e80a8563a3870cc2b1bad41c9d205e19d4e845ee4f774db80.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Users\Admin\AppData\Local\Temp\d1ba2091c52a840e80a8563a3870cc2b1bad41c9d205e19d4e845ee4f774db80.exe
      "C:\Users\Admin\AppData\Local\Temp\d1ba2091c52a840e80a8563a3870cc2b1bad41c9d205e19d4e845ee4f774db80.exe"
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1204
      • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
        "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe" DEL:C:\Users\Admin\AppData\Local\Temp\d1ba2091c52a840e80a8563a3870cc2b1bad41c9d205e19d4e845ee4f774db80.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1320
        • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe
          "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe" DEL:C:\Users\Admin\AppData\Local\Temp\d1ba2091c52a840e80a8563a3870cc2b1bad41c9d205e19d4e845ee4f774db80.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1808
          • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync .exe
            "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync .exe" "C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe" DEL:C:\Users\Admin\AppData\Local\Temp\d1ba2091c52a840e80a8563a3870cc2b1bad41c9d205e19d4e845ee4f774db80.exe
            5⤵
              PID:1552

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe

      Filesize

      64KB

      MD5

      4d30ce0b5ab2896bee95e029ab5971ab

      SHA1

      247766d61b72e346a53c0662f29e61c77373a490

      SHA256

      39f4695be3a26590e0304aad92b20249604a851d3d58e04491a17b4c702889ed

      SHA512

      28acdb06ad80da2a4524e72cdacb2b954fd7dda86eb9259f71e78eaadcd942372255af0bcab1ba0ba4382d6e0647b790d3dea20e28bba0bab9e4cb7f8e3f529b

    • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe

      Filesize

      64KB

      MD5

      4d30ce0b5ab2896bee95e029ab5971ab

      SHA1

      247766d61b72e346a53c0662f29e61c77373a490

      SHA256

      39f4695be3a26590e0304aad92b20249604a851d3d58e04491a17b4c702889ed

      SHA512

      28acdb06ad80da2a4524e72cdacb2b954fd7dda86eb9259f71e78eaadcd942372255af0bcab1ba0ba4382d6e0647b790d3dea20e28bba0bab9e4cb7f8e3f529b

    • C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe

      Filesize

      64KB

      MD5

      4d30ce0b5ab2896bee95e029ab5971ab

      SHA1

      247766d61b72e346a53c0662f29e61c77373a490

      SHA256

      39f4695be3a26590e0304aad92b20249604a851d3d58e04491a17b4c702889ed

      SHA512

      28acdb06ad80da2a4524e72cdacb2b954fd7dda86eb9259f71e78eaadcd942372255af0bcab1ba0ba4382d6e0647b790d3dea20e28bba0bab9e4cb7f8e3f529b

    • \Program Files (x86)\Microsoft Office\Office14\BCSSync.exe

      Filesize

      64KB

      MD5

      4d30ce0b5ab2896bee95e029ab5971ab

      SHA1

      247766d61b72e346a53c0662f29e61c77373a490

      SHA256

      39f4695be3a26590e0304aad92b20249604a851d3d58e04491a17b4c702889ed

      SHA512

      28acdb06ad80da2a4524e72cdacb2b954fd7dda86eb9259f71e78eaadcd942372255af0bcab1ba0ba4382d6e0647b790d3dea20e28bba0bab9e4cb7f8e3f529b

    • \Program Files (x86)\Microsoft Office\Office14\BCSSync.exe

      Filesize

      64KB

      MD5

      4d30ce0b5ab2896bee95e029ab5971ab

      SHA1

      247766d61b72e346a53c0662f29e61c77373a490

      SHA256

      39f4695be3a26590e0304aad92b20249604a851d3d58e04491a17b4c702889ed

      SHA512

      28acdb06ad80da2a4524e72cdacb2b954fd7dda86eb9259f71e78eaadcd942372255af0bcab1ba0ba4382d6e0647b790d3dea20e28bba0bab9e4cb7f8e3f529b

    • memory/1204-60-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1204-54-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1204-100-0x0000000001F80000-0x0000000001F94000-memory.dmp

      Filesize

      80KB

    • memory/1204-64-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1204-65-0x0000000075601000-0x0000000075603000-memory.dmp

      Filesize

      8KB

    • memory/1204-66-0x0000000010000000-0x000000001000A000-memory.dmp

      Filesize

      40KB

    • memory/1204-70-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1204-94-0x0000000001F80000-0x0000000001F94000-memory.dmp

      Filesize

      80KB

    • memory/1204-58-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1204-57-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1204-56-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1204-55-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1204-99-0x0000000001F80000-0x0000000001F94000-memory.dmp

      Filesize

      80KB

    • memory/1204-96-0x00000000744D1000-0x00000000744D3000-memory.dmp

      Filesize

      8KB

    • memory/1204-93-0x0000000001F80000-0x0000000001F94000-memory.dmp

      Filesize

      80KB

    • memory/1320-86-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/1348-63-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/1808-95-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB