Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    20/06/2024, 22:27

General

  • Target
    $TEMP/dospop.exe
  • Size 437KB
  • Sample240620-2dgmbazfqa
  • SHA256 9240b45f226db49da56c7b12b7a347eaee578cfc0e4603019091a1fd81bfcafb
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 4 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in Program Files directory 29 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$TEMP\dospop.exe
    "C:\Users\Admin\AppData\Local\Temp\$TEMP\dospop.exe"
    1⤵
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:2784
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32 /s "C:\Program Files (x86)\DosPop Toolbar\dospop.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:2196

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        RSSReader_plugin.dll

        • Path C:\Program Files (x86)\DosPop Toolbar\RSSReader_plugin.dll
        • Size 260KB
        • SHA256 efb9b1707ca2447c63036b1074c402f8ff6a5f30441c03ea372d1f0ec8423bc5
        • MD5 SHA1 SHA512 SSDEEP

        basis.xml

        • Path C:\Program Files (x86)\DosPop Toolbar\basis.xml
        • Size 11KB
        • SHA256 e5e25d47c991d1b7582de5cb41427b4f58bbb72d67c208829dba6a52b40e9a27
        • MD5 SHA1 SHA512 SSDEEP

        dospop.dll

        • Path C:\Program Files (x86)\DosPop Toolbar\dospop.dll
        • Size 872KB
        • SHA256 7e333107d1b5d943b9ad2a52625b02d28d79be60734e2d77a8ed2c7335214632
        • MD5 SHA1 SHA512 SSDEEP

        tbhelper.dll

        • Path C:\Program Files (x86)\DosPop Toolbar\tbhelper.dll
        • Size 180KB
        • SHA256 3f56aa185c36a69557a87633def1b291bc7e61064e4ee51483e7b6a2659bb51c
        • MD5 SHA1 SHA512 SSDEEP

        version.txt

        • Path C:\Program Files (x86)\DosPop Toolbar\version.txt
        • Size 49B
        • SHA256 0f85f776d85b5ee164a43c166dab525625655bd42b6c0503fa8d36fb702df666
        • MD5 SHA1 SHA512

        memory/2196-21-0x0000000000230000-0x0000000000260000-memory.dmp

        memory/2196-26-0x00000000002A0000-0x00000000002E4000-memory.dmp