Analysis

  • max time kernel
    141s
  • max time network
    139s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    11/08/2024, 17:35

General

  • Target

    020b982738af6f2e599c5a4f5e053e2a55030f78e9ec084f4d45cc52dd60a997.exe

  • Size

    4.0MB

  • MD5

    424bbbc79bd9fe97e7d90f316d967691

  • SHA1

    5cafa8abaa5caba597cbd6b9f71a2ef246fb50f8

  • SHA256

    020b982738af6f2e599c5a4f5e053e2a55030f78e9ec084f4d45cc52dd60a997

  • SHA512

    883bd3a813b7475157f22196c306996781396143bf46e8f5a73fd056e952f1fe28a071e4198297c0777331c0d0cf4e1562b55888c3bf44daf85c0283ed9417eb

  • SSDEEP

    98304:NjAFRbE99GGbWhcbF9+ZUkXoBbk9FlZ/lFXPaJkDSi8sdX:d4hE9kGShAF9vdm9FlZnP8kmvsV

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 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\020b982738af6f2e599c5a4f5e053e2a55030f78e9ec084f4d45cc52dd60a997.exe
    "C:\Users\Admin\AppData\Local\Temp\020b982738af6f2e599c5a4f5e053e2a55030f78e9ec084f4d45cc52dd60a997.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Users\Admin\AppData\Local\Temp\is-DK4U1.tmp\020b982738af6f2e599c5a4f5e053e2a55030f78e9ec084f4d45cc52dd60a997.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-DK4U1.tmp\020b982738af6f2e599c5a4f5e053e2a55030f78e9ec084f4d45cc52dd60a997.tmp" /SL5="$602D6,3925324,54272,C:\Users\Admin\AppData\Local\Temp\020b982738af6f2e599c5a4f5e053e2a55030f78e9ec084f4d45cc52dd60a997.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:1636
      • 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:2912
      • 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:1496

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-DK4U1.tmp\020b982738af6f2e599c5a4f5e053e2a55030f78e9ec084f4d45cc52dd60a997.tmp

          Filesize

          692KB

          MD5

          00f15ee57af82fc40ac1ec609d1810a4

          SHA1

          6abfae4f73ade5af54d267c02389daf49abd6a51

          SHA256

          20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847

          SHA512

          f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c

        • C:\Users\Admin\AppData\Local\Temp\is-QB197.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-QB197.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

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

          Filesize

          3.3MB

          MD5

          8cdb9f1f7d3734e82ea8c4afb7fa1992

          SHA1

          335960527a2c758020f74e440c5e30c749cb83c4

          SHA256

          a9ba83212683725c224a214f853ee91b05205b410cddc759c5ed31ab541116e7

          SHA512

          fd98f4a4ada099f22db492ff837f03dff875ff84292e3f80912504132a63c967d1bddf9ec24f9c1b39f4b0f8da8b983ccb24f0d9a4b715e50925a5d80d06a08a

        • memory/1116-68-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1116-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/1116-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1496-97-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-103-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-118-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-113-0x0000000000A30000-0x0000000000AD2000-memory.dmp

          Filesize

          648KB

        • memory/1496-66-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-67-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-114-0x0000000000A30000-0x0000000000AD2000-memory.dmp

          Filesize

          648KB

        • memory/1496-112-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-70-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-72-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-74-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-77-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-80-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-83-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-84-0x0000000000A30000-0x0000000000AD2000-memory.dmp

          Filesize

          648KB

        • memory/1496-89-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-94-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-109-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-100-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1496-106-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/1636-10-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/1636-69-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2912-59-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2912-58-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2912-61-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2912-63-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB