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Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    27/07/2020, 09:40

General

  • Target

    miXrhYm.exe

  • Size

    250KB

  • MD5

    de03cfae2cdd0cf105f925ce5924b5ca

  • SHA1

    f8d6d5b09887e6581b209f0503cb7699bbd21c87

  • SHA256

    acac6a29cee0fb15fa8df0c561e0ca34af844d0ec2b8828e4abb661ff9828b5d

  • SHA512

    563af3939bc675ec7e3b8cede8fb81c247ef7c5bd10ba2dba3da7dc251205957daa29889c4f2ec21ae5bba202fe057f339cb75c92b9d01481aff89202dba234e

Malware Config

Signatures

  • Modifies system certificate store 2 IoCs
  • Ursnif RM3

    A heavily modified version of Ursnif discovered in the wild.

  • Checks whether UAC is enabled 16 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • Suspicious use of SetWindowsHookEx 32 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 196 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\miXrhYm.exe
    "C:\Users\Admin\AppData\Local\Temp\miXrhYm.exe"
    1⤵
      PID:112
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Checks whether UAC is enabled
      • Suspicious use of WriteProcessMemory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of FindShellTrayWindow
      • Modifies Internet Explorer settings
      PID:1804
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1804 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies system certificate store
        • Checks whether UAC is enabled
        • Suspicious use of SetWindowsHookEx
        PID:1916
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1804 CREDAT:537615 /prefetch:2
        2⤵
          PID:528
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
        • Checks whether UAC is enabled
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of FindShellTrayWindow
        • Modifies Internet Explorer settings
        PID:1424
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1424 CREDAT:275457 /prefetch:2
          2⤵
          • Checks whether UAC is enabled
          • Suspicious use of SetWindowsHookEx
          PID:316
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
        • Checks whether UAC is enabled
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of FindShellTrayWindow
        • Modifies Internet Explorer settings
        PID:1580
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1580 CREDAT:275457 /prefetch:2
          2⤵
          • Checks whether UAC is enabled
          • Suspicious use of SetWindowsHookEx
          PID:1936
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
        • Checks whether UAC is enabled
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of FindShellTrayWindow
        • Modifies Internet Explorer settings
        PID:664
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:664 CREDAT:275457 /prefetch:2
          2⤵
          • Checks whether UAC is enabled
          • Suspicious use of SetWindowsHookEx
          PID:1268
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
        • Checks whether UAC is enabled
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of FindShellTrayWindow
        • Modifies Internet Explorer settings
        PID:1752
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1752 CREDAT:275457 /prefetch:2
          2⤵
          • Checks whether UAC is enabled
          • Suspicious use of SetWindowsHookEx
          • Modifies Internet Explorer settings
          PID:1852
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
        • Checks whether UAC is enabled
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of FindShellTrayWindow
        • Modifies Internet Explorer settings
        PID:2012
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2012 CREDAT:275457 /prefetch:2
          2⤵
          • Checks whether UAC is enabled
          • Suspicious use of SetWindowsHookEx
          PID:2044
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
        • Checks whether UAC is enabled
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of FindShellTrayWindow
        • Modifies Internet Explorer settings
        PID:1616
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1616 CREDAT:275457 /prefetch:2
          2⤵
          • Checks whether UAC is enabled
          • Suspicious use of SetWindowsHookEx
          • Modifies Internet Explorer settings
          PID:1068
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
        • Checks whether UAC is enabled
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of FindShellTrayWindow
        • Modifies Internet Explorer settings
        PID:1632
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1632 CREDAT:275457 /prefetch:2
          2⤵
          • Checks whether UAC is enabled
          • Suspicious use of SetWindowsHookEx
          • Modifies Internet Explorer settings
          PID:1040

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/112-0-0x0000000000310000-0x0000000000327000-memory.dmp

        Filesize

        92KB

      • memory/1916-3-0x0000000004DC0000-0x0000000004DC3000-memory.dmp

        Filesize

        12KB

      • memory/1916-2-0x0000000006BE0000-0x0000000006C03000-memory.dmp

        Filesize

        140KB