Analysis

  • max time kernel
    51s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    21/07/2024, 10:56

General

  • Target

    b246538c5d0a380ad167787fd3021c10N.exe

  • Size

    45KB

  • MD5

    b246538c5d0a380ad167787fd3021c10

  • SHA1

    35adefe9be992d1c9ed8965b26cdc67a69684e77

  • SHA256

    857bd2e46ce4e71b42fda7ef327de52b7748d4961df3051d33b846ec2a2aa5a4

  • SHA512

    8da1e9d5bdddf2cf7618b5745a9c8342a6d0faafd215ee103acc4337c59b0e98c0a5e8fa1e50264c84607649887c3dfa719dfac768cc4a15eecef3c2032a5048

  • SSDEEP

    768:8V5hy+7c6OXdfwEQ90NoZCi5TXbRzjEDta8jFqjsZvI2YxrQiP+ZRDd+RYTl/iUU:8h7xsCKosi5pzjIcdRiTpqMGxs3E

Score
8/10

Malware Config

Signatures

  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 6 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 12 IoCs
  • Modifies registry class 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b246538c5d0a380ad167787fd3021c10N.exe
    "C:\Users\Admin\AppData\Local\Temp\b246538c5d0a380ad167787fd3021c10N.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2568
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe
      2⤵
        PID:3044
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c C:\123.bat
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2712
        • C:\Windows\SysWOW64\reg.exe
          reg add "hklm\software\microsoft\windows nt\currentversion\Image File Execution Options\ZhuDongFangYu.exe" /v debugger /t reg_sz /d "ntsd -d" /f
          3⤵
          • Event Triggered Execution: Image File Execution Options Injection
          PID:1872
        • C:\Windows\SysWOW64\reg.exe
          reg add "hklm\software\microsoft\windows nt\currentversion\Image File Execution Options\360tray.exe" /v debugger /t reg_sz /d "ntsd -d" /f
          3⤵
          • Event Triggered Execution: Image File Execution Options Injection
          PID:1300
        • C:\Windows\SysWOW64\reg.exe
          reg add "hklm\software\microsoft\windows nt\currentversion\Image File Execution Options\taskmgr.exe" /v debugger /t reg_sz /d "ntsd -d" /f
          3⤵
          • Event Triggered Execution: Image File Execution Options Injection
          PID:2340
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c assoc .txt = exefile
        2⤵
        • Modifies registry class
        PID:3016
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c ftype comfile=C:\Users\Admin\AppData\Local\Temp\b246538c5d0a380ad167787fd3021c10N.exe
        2⤵
        • Modifies system executable filetype association
        • Modifies registry class
        PID:1684
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c ftype zipfile=C:\Users\Admin\AppData\Local\Temp\b246538c5d0a380ad167787fd3021c10N.exe
        2⤵
        • Modifies registry class
        PID:2084
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c ftype jpgfile=C:\Users\Admin\AppData\Local\Temp\b246538c5d0a380ad167787fd3021c10N.exe
        2⤵
        • Modifies registry class
        PID:1552
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c ftype txtfile=C:\Users\Admin\AppData\Local\Temp\b246538c5d0a380ad167787fd3021c10N.exe
        2⤵
        • Modifies registry class
        PID:1864

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\123.bat

            Filesize

            443B

            MD5

            70170ba16a737a438223b88279dc6c85

            SHA1

            cc066efa0fca9bc9f44013660dea6b28ddfd6a24

            SHA256

            d3674f4b34a8ca8167160519aa5c66b6024eb09f4cb0c9278bc44370b0efec6a

            SHA512

            37cc8c954544374d0a1ca4d012c9bd0b47781bc9bb8d0c15a8a95b9934893db3bedee867b984c20edabe54c39574abf7250de433aade6c0d544b8dd2c972c6da

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

            Filesize

            45KB

            MD5

            061e7e35eff414015c2113ee484f29b7

            SHA1

            7d86ee9d0c863260e892b43dd54d747c7f4321af

            SHA256

            457c5df19539001d7923919133eb5897fc03013eb768d793b49b0673d066a6aa

            SHA512

            85ad779827cdc821df199f0b310b1cfab28ee56072ba502c17ac6e2cbde50b0271a7daa15c627d748233a37fdb1e1dbe895d059fc9ab5914c1d8d82d95199996

          • memory/2340-1070-0x0000000076F80000-0x000000007709F000-memory.dmp

            Filesize

            1.1MB

          • memory/2340-1071-0x0000000076E80000-0x0000000076F7A000-memory.dmp

            Filesize

            1000KB