Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/08/2024, 16:31

General

  • Target

    a9eefef8519d3907438021b5e7af34e163ec5243d29f1774f80985f257f05d22.exe

  • Size

    4.0MB

  • MD5

    7c6117cd4940dfeae5448aa21d90c066

  • SHA1

    7d7c60339332cd8da02203870c8a44a83e355db4

  • SHA256

    a9eefef8519d3907438021b5e7af34e163ec5243d29f1774f80985f257f05d22

  • SHA512

    ba5a71572df9c569e4790792472a49a1ab0172f03fe115c3d7d4667844529cc764a9da25b3f8094d00a9792be3f36962128a8ab78408694734b6385e2d910947

  • SSDEEP

    98304:NkMdBQwV7gN1vcYVVEoZoLpWp9ZqwnQjrmvATS9nudX:eMPgBcYdmtWp9ZqwQjrmYTyuV

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
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • 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\a9eefef8519d3907438021b5e7af34e163ec5243d29f1774f80985f257f05d22.exe
    "C:\Users\Admin\AppData\Local\Temp\a9eefef8519d3907438021b5e7af34e163ec5243d29f1774f80985f257f05d22.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2652
    • C:\Users\Admin\AppData\Local\Temp\is-QM8GE.tmp\a9eefef8519d3907438021b5e7af34e163ec5243d29f1774f80985f257f05d22.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QM8GE.tmp\a9eefef8519d3907438021b5e7af34e163ec5243d29f1774f80985f257f05d22.tmp" /SL5="$60070,3907257,54272,C:\Users\Admin\AppData\Local\Temp\a9eefef8519d3907438021b5e7af34e163ec5243d29f1774f80985f257f05d22.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:2816
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5092
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3456

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-NF8VL.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-NF8VL.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • C:\Users\Admin\AppData\Local\Temp\is-QM8GE.tmp\a9eefef8519d3907438021b5e7af34e163ec5243d29f1774f80985f257f05d22.tmp

          Filesize

          692KB

          MD5

          00f15ee57af82fc40ac1ec609d1810a4

          SHA1

          6abfae4f73ade5af54d267c02389daf49abd6a51

          SHA256

          20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847

          SHA512

          f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c

        • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe

          Filesize

          3.3MB

          MD5

          79257d8f04e93fbb87ef3844714d4a4e

          SHA1

          53f9b5b8bc68537613efb8a1a72187b6b3ca623d

          SHA256

          ad180e9d576f01de2fa2ef25d339b304104980aee98ce7d47f3f629dca2fdb45

          SHA512

          809619626e5afce609875de40b4b78585eb70fd90cafb366264747813bcf26f9f27c8c142ff95f619a42a993192de359078648b60225556d1014e66d79c05714

        • memory/2652-65-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2652-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/2652-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2816-10-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2816-66-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/3456-92-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-82-0x0000000002510000-0x00000000025B2000-memory.dmp

          Filesize

          648KB

        • memory/3456-111-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-108-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-67-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-70-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-73-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-76-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-79-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-104-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-84-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-89-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-101-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-95-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-98-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/5092-58-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/5092-62-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/5092-59-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB

        • memory/5092-61-0x0000000000400000-0x0000000000748000-memory.dmp

          Filesize

          3.3MB