Analysis

  • max time kernel
    112s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/08/2024, 07:10

General

  • Target

    684470300c4b90bbb227c45a182ac650N.exe

  • Size

    4.3MB

  • MD5

    684470300c4b90bbb227c45a182ac650

  • SHA1

    ce7105100a3c680dc818710b75374ff742720278

  • SHA256

    6cf660335530817ddbf899f3b37d846937262a7212e24ce6313c0790fd8fe132

  • SHA512

    ecef3b272d2d6eee95b7d4cb8d5b5c4798ccc542a185f35b2007cea18cb8acef05952f93b739d6bf7a8a30ab2cce3a3334d4275f3cfc5056c0175fd00e837999

  • SSDEEP

    98304:NInbEpV4AZefRatOfCbifJF+DLfusnnKsGqJRmYdI:V44eJatOkg+fFnKsGuS

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\684470300c4b90bbb227c45a182ac650N.exe
    "C:\Users\Admin\AppData\Local\Temp\684470300c4b90bbb227c45a182ac650N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3216
    • C:\Users\Admin\AppData\Local\Temp\is-1235U.tmp\684470300c4b90bbb227c45a182ac650N.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-1235U.tmp\684470300c4b90bbb227c45a182ac650N.tmp" /SL5="$70042,4221967,54272,C:\Users\Admin\AppData\Local\Temp\684470300c4b90bbb227c45a182ac650N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4740
      • C:\Users\Admin\AppData\Local\Free CUDA Video Converter\freecudavideoconverter.exe
        "C:\Users\Admin\AppData\Local\Free CUDA Video Converter\freecudavideoconverter.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:116
      • C:\Users\Admin\AppData\Local\Free CUDA Video Converter\freecudavideoconverter.exe
        "C:\Users\Admin\AppData\Local\Free CUDA Video Converter\freecudavideoconverter.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3128

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Free CUDA Video Converter\freecudavideoconverter.exe

          Filesize

          3.3MB

          MD5

          3e1d4537b5c6d96e4e0214d33da284c7

          SHA1

          8cfb7856e835dc465bf2888c6830dee5a8810736

          SHA256

          e505b7a0b2665c5541ee0e44765edcf7348771623ab1c6122f1f3f1f65c2b46c

          SHA512

          629e3ace172066d00d3b23769dc7047fccae689370ed09c19c62dd514697aa55e5662f5d7fb39416c2ff0135a0894ab83d02973e186a5ffcafe13fc3c288c759

        • C:\Users\Admin\AppData\Local\Temp\is-1235U.tmp\684470300c4b90bbb227c45a182ac650N.tmp

          Filesize

          692KB

          MD5

          9b4f9ec7acaa0201282f5bb6fc15978b

          SHA1

          50aae7d705db9c1ae5bb2b1f4c9317354cc04556

          SHA256

          bc85afd449745aed63029469eec4cc92683dc7645c8ef79cd2dd6ea2fc426916

          SHA512

          ca4ef38cd8f79dc87b5492a9336c716587921e7123728046c802ec90386d9da9c1d1b8df45248aa191286c5fdb99e70dbd7205844c93715a26657ec7bf92918d

        • C:\Users\Admin\AppData\Local\Temp\is-TR3L5.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-TR3L5.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • memory/116-58-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/116-59-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/116-61-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-83-0x0000000000A40000-0x0000000000AE2000-memory.dmp

          Filesize

          648KB

        • memory/3128-90-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-102-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-65-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-99-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-96-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-68-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-71-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-74-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-77-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-80-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-93-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3128-85-0x0000000000400000-0x0000000000753000-memory.dmp

          Filesize

          3.3MB

        • memory/3216-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3216-66-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3216-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/4740-13-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4740-67-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB