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Analysis

  • max time kernel
    148s
  • max time network
    159s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2022, 12:10

General

  • Target

    c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe

  • Size

    1.6MB

  • MD5

    c5845949f95c5b713b9a76d5211c835f

  • SHA1

    71c49204f8666bd2d54daf8bd0eabe0a4b145de7

  • SHA256

    c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888

  • SHA512

    35efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad

  • SSDEEP

    24576:W+zHdFeYR0iGkwFgc6BQSmtl0UrQbchemdY2GDMCbItNWf:WgW0AYySY0A3dYDA1tNWf

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
    "C:\Users\Admin\AppData\Local\Temp\c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1436
    • C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
      "C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe" C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1260
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\System32\explorer.exe" http://jc.110160.com/ad.htm
      2⤵
        PID:1944
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1824
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" http://jc.110160.com/ad.htm
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1812
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1812 CREDAT:275457 /prefetch:2
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:756

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe

      Filesize

      1.6MB

      MD5

      c5845949f95c5b713b9a76d5211c835f

      SHA1

      71c49204f8666bd2d54daf8bd0eabe0a4b145de7

      SHA256

      c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888

      SHA512

      35efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\TL6SPMKS.txt

      Filesize

      603B

      MD5

      a7a1efd1d9b0b46a169f126aa35e821e

      SHA1

      bfa575f96730c9a554328e614d04a63233d209a1

      SHA256

      53ad6db844137d1e62cac07f38f51de612757214dc744697bb2058b9e14b706d

      SHA512

      a4fa003af37fbe7deb9db8c7d27bb8f9cfc8b66c146a4cdc20dc052ed3a4e11f92f216bbaf2fa84e06e8df91ba9089ed41e9218a14aed2ecd9f5a37da1303d53

    • \Users\Admin\AppData\Local\Temp\copyc88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888.exe

      Filesize

      1.6MB

      MD5

      c5845949f95c5b713b9a76d5211c835f

      SHA1

      71c49204f8666bd2d54daf8bd0eabe0a4b145de7

      SHA256

      c88d9f626900863fb95cced727ec8d203537f1744242f482c6024750185e5888

      SHA512

      35efa487ab280bb1a1e364f2a62c71ea37137a079df4b1c204acaa3e9706e13ae5d07065182fe71118152edb96ba0fe7424c0ad705c2f0341754f6b8c6549bad

    • memory/1436-54-0x0000000075601000-0x0000000075603000-memory.dmp

      Filesize

      8KB

    • memory/1824-62-0x000007FEFB6A1000-0x000007FEFB6A3000-memory.dmp

      Filesize

      8KB

    • memory/1944-61-0x0000000071361000-0x0000000071363000-memory.dmp

      Filesize

      8KB