Analysis

  • max time kernel
    153s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/03/2024, 02:09

General

  • Target
    af8ad66c234e8b7e8fc6f1f2a6ff9218.exe
  • Size 44KB
  • Sample240302-ck95rshb22
  • SHA256 5b98a885e2d988846d86a40c7f83a01d1de0d406e1096eac2b78621e047f5b52
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 53 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SetWindowsHookEx 28 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af8ad66c234e8b7e8fc6f1f2a6ff9218.exe
    "C:\Users\Admin\AppData\Local\Temp\af8ad66c234e8b7e8fc6f1f2a6ff9218.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3044
    • C:\Windows\SysWOW64\msdanim.exe
      "C:\Windows\system32\msdanim.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1984
      • C:\Program Files\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://www.tyjoin.cn/plus1/xml.html
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:856
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:856 CREDAT:17410 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:3576
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:856 CREDAT:82952 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:3616
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:856 CREDAT:82960 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:4388
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:856 CREDAT:82968 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:4432
      • C:\Program Files\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://www.tyjoin.cn/plus1/xml.html
        3⤵
        • Modifies Internet Explorer settings
        PID:3988
      • C:\Program Files\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://www.tyjoin.cn/plus1/xml.html
        3⤵
        • Modifies Internet Explorer settings
        PID:4256
      • C:\Program Files\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://www.tyjoin.cn/plus1/xml.html
        3⤵
        • Modifies Internet Explorer settings
        PID:3188

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        suggestions[1].en-US

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\G7TWCMRP\suggestions[1].en-US
        • Size 17KB
        • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
        • MD5 SHA1 SHA512 SSDEEP

        msdanim.exe

        • Path C:\Windows\SysWOW64\msdanim.exe
        • Size 44KB
        • SHA256 5b98a885e2d988846d86a40c7f83a01d1de0d406e1096eac2b78621e047f5b52
        • MD5 SHA1 SHA512 SSDEEP

        memory/1984-34-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-35-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-19-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-20-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-21-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-33-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-61-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-13-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-60-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-43-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-49-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-50-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-53-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/1984-54-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/3044-12-0x0000000000400000-0x000000000040F000-memory.dmp

        memory/3044-0-0x0000000000400000-0x000000000040F000-memory.dmp