Analysis

  • max time kernel
    141s
  • max time network
    131s
  • 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, 23:53

General

  • Target

    03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe

  • Size

    4.0MB

  • MD5

    17edde52232e2a177085a54c374f9316

  • SHA1

    58cae2aa8770fb99b80e59858513d1e4cfeab082

  • SHA256

    03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed

  • SHA512

    94a6ac98fec5429e230c4e9de490887df490842bc32e74e66696cd72db9b06182637a82d1170d1edd43f4bd33db71b17871048ea8981524292bd37a2720c98bc

  • SSDEEP

    98304:NjztowQcdjrZtmMx80vQbAW3k/lTkRJ0ZvGNRB+XDoeVMPrXdX:xztfptmMUbA7lCEWvRPrXV

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\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe
    "C:\Users\Admin\AppData\Local\Temp\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2656
    • C:\Users\Admin\AppData\Local\Temp\is-K2KF5.tmp\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-K2KF5.tmp\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp" /SL5="$802B2,3918803,54272,C:\Users\Admin\AppData\Local\Temp\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.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:1908
      • 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:3456
      • 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:4688

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • C:\Users\Admin\AppData\Local\Temp\is-K2KF5.tmp\03dc37425c77d730f1bf559d139e06e8548526c5a68f2eb865f7349cfc4e02ed.tmp

          Filesize

          692KB

          MD5

          00f15ee57af82fc40ac1ec609d1810a4

          SHA1

          6abfae4f73ade5af54d267c02389daf49abd6a51

          SHA256

          20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847

          SHA512

          f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c

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

          Filesize

          3.3MB

          MD5

          26c70e0585ff2d9033c45dfbea69e48e

          SHA1

          709389e97c110965afa91e1b953c41320dc373ff

          SHA256

          cfd651986d920a82ff8e3588e5ef80febefeed33abf701401234d0f8cca62fbc

          SHA512

          9a56c2c1792814c6f23511038e0f8c18d6572bc60559f336ef0875f13b4adab7bb32f6cda3cbe043d24523b57589f10f46d0a64f472622897440b92e4b4375aa

        • memory/1908-67-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/1908-13-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2656-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/2656-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2656-66-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3456-58-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-62-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/3456-60-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-71-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-93-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-65-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-74-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-77-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-80-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-81-0x0000000002640000-0x00000000026E2000-memory.dmp

          Filesize

          648KB

        • memory/4688-84-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-90-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-68-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-96-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-99-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-102-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-105-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-106-0x0000000002640000-0x00000000026E2000-memory.dmp

          Filesize

          648KB

        • memory/4688-107-0x0000000002640000-0x00000000026E2000-memory.dmp

          Filesize

          648KB

        • memory/4688-111-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/4688-114-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB