Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/02/2024, 21:42

General

  • Target
    af8ad66c234e8b7e8fc6f1f2a6ff9218.exe
  • Size 44KB
  • Sample240229-1kt1jsdd6s
  • 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:4728
    • C:\Windows\SysWOW64\msdanim.exe
      "C:\Windows\system32\msdanim.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3600
      • 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:3776
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3776 CREDAT:17410 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:4224
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3776 CREDAT:82952 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:3604
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3776 CREDAT:82960 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:1688
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3776 CREDAT:82968 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:4932
      • 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:2764
      • 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:848
      • 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:3584
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=2700,i,14629483171127516024,12350888228055326066,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3696

    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\R2H8ZEZE\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/3600-34-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-35-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-19-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-20-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-21-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-33-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-61-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-13-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-60-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-43-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-49-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-50-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-53-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/3600-54-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/4728-12-0x0000000000400000-0x000000000040F000-memory.dmp

          memory/4728-0-0x0000000000400000-0x000000000040F000-memory.dmp