Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/03/2024, 23:54

General

  • Target
    cc935ed25b4c94e4a73a2e46ce5401c2.exe
  • Size 32KB
  • Sample240315-3x4fvsgd24
  • SHA256 dcb27500d056ada6db67b7a0b562c99797789b8d7a1f92a11361584fe3088ac0
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
upx

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 44 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cc935ed25b4c94e4a73a2e46ce5401c2.exe
    "C:\Users\Admin\AppData\Local\Temp\cc935ed25b4c94e4a73a2e46ce5401c2.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4456
    • C:\Windows\SysWOW64\wscript.exe
      "C:\Windows\system32\wscript.exe" //B "C:\Users\Admin\AppData\Local\Temp\TTeMEyLnxm.js" "C:\Users\Admin\AppData\Local\Temp\cc935ed25b4c94e4a73a2e46ce5401c2.exe"
      2⤵
        PID:4884
    • C:\Program Files (x86)\Internet Explorer\ielowutil.exe
      "C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
      1⤵
        PID:444
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:736
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:736 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:4724

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            adult.oo[1].xml

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\DOMStore\74O910AA\adult.oo[1].xml
            • Size 13B
            • SHA256 b71e4d17274636b97179ba2d97c742735b6510eb54f22893d3a2daff2ceb28db
            • MD5 SHA1 SHA512

            favicon[1].htm

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\BI7EUHR7\favicon[1].htm
            • Size 291B
            • SHA256 014c471c07b2bc1b90cf5b46eb8eb60abe3ac278e43cd8fcc7c4e6c8950c592d
            • MD5 SHA1 SHA512

            TTeMEyLnxm.js

            • Path C:\Users\Admin\AppData\Local\Temp\TTeMEyLnxm.js
            • Size 10KB
            • SHA256 1fbbf7f1a5fe539fa975e246dba624c38c708e987f5516b88498cd3633b6daba
            • MD5 SHA1 SHA512 SSDEEP

            memory/4456-0-0x0000000000010000-0x0000000000032000-memory.dmp

            memory/4456-3-0x0000000000010000-0x0000000000032000-memory.dmp