Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    21-11-2023 00:36

General

  • Target

    callrec_20231120_8549394486939845-x.htm

  • Size

    723B

  • MD5

    ed1c66eca2a6bafb813e2f5ffcd69224

  • SHA1

    248c5b72221c4c42b7833d5742d12a88a358df1f

  • SHA256

    0d9da00c2679864855a0ce0b797b5e5b6b4cca751d9b1f4b17f7608f186aebd4

  • SHA512

    7df04ce71eea4ae167b588b54020a36279a509d0e9186ef5e4ebd722015eeaaa729a2be5533029756fc7d6bdc9f361a062b332f44b35c09a413084d2c867b9a9

Score
4/10

Malware Config

Signatures

  • Drops file in Windows directory 4 IoCs
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\LaunchWinApp.exe
    "C:\Windows\system32\LaunchWinApp.exe" "C:\Users\Admin\AppData\Local\Temp\callrec_20231120_8549394486939845-x.htm"
    1⤵
      PID:528
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
      1⤵
      • Drops file in Windows directory
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:284
    • C:\Windows\system32\browser_broker.exe
      C:\Windows\system32\browser_broker.exe -Embedding
      1⤵
      • Modifies Internet Explorer settings
      PID:3852
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Modifies registry class
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:732
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4208
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      PID:2092
    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
      1⤵
        PID:3204
      • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
        "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
        1⤵
        • Modifies registry class
        PID:2652

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9O18J2ON\edgecompatviewlist[1].xml

        Filesize

        74KB

        MD5

        d4fc49dc14f63895d997fa4940f24378

        SHA1

        3efb1437a7c5e46034147cbbc8db017c69d02c31

        SHA256

        853d2f4eb81c9fdcea2ee079f6faf98214b111b77cdf68709b38989d123890f1

        SHA512

        cc60d79b4afe5007634ac21dc4bc92081880be4c0d798a1735b63b27e936c02f399964f744dc73711987f01e8a1064b02a4867dd6cac27538e5fbe275cc61e0a

      • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\MicrosoftEdge\Cache\Y7GTD9PJ\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • memory/284-0-0x0000016B82620000-0x0000016B82630000-memory.dmp

        Filesize

        64KB

      • memory/284-16-0x0000016B82C00000-0x0000016B82C10000-memory.dmp

        Filesize

        64KB

      • memory/284-35-0x0000016B87000000-0x0000016B87002000-memory.dmp

        Filesize

        8KB

      • memory/284-153-0x0000016B8ACE0000-0x0000016B8AD71000-memory.dmp

        Filesize

        580KB

      • memory/284-128-0x0000016B8ADE0000-0x0000016B8ADE1000-memory.dmp

        Filesize

        4KB

      • memory/284-129-0x0000016B8ADF0000-0x0000016B8ADF1000-memory.dmp

        Filesize

        4KB

      • memory/2092-83-0x000002E7BF9E0000-0x000002E7BFA00000-memory.dmp

        Filesize

        128KB

      • memory/2092-90-0x000002E7D00E0000-0x000002E7D0100000-memory.dmp

        Filesize

        128KB

      • memory/2092-100-0x000002E7BF5C0000-0x000002E7BF5E0000-memory.dmp

        Filesize

        128KB

      • memory/2092-79-0x000002E7CFFD0000-0x000002E7D0061000-memory.dmp

        Filesize

        580KB

      • memory/2092-73-0x000002E7BF9E0000-0x000002E7BFA00000-memory.dmp

        Filesize

        128KB

      • memory/2092-59-0x000002E7CFF80000-0x000002E7CFF82000-memory.dmp

        Filesize

        8KB

      • memory/2092-57-0x000002E7CFEC0000-0x000002E7CFEC2000-memory.dmp

        Filesize

        8KB

      • memory/2092-55-0x000002E7CFEA0000-0x000002E7CFEA2000-memory.dmp

        Filesize

        8KB

      • memory/3852-117-0x00000168478E0000-0x0000016847971000-memory.dmp

        Filesize

        580KB