Analysis

  • max time kernel
    141s
  • max time network
    128s
  • 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, 21:46

General

  • Target

    238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe

  • Size

    4.2MB

  • MD5

    a5ad3ecd27b44ace6331d0f2ef24e82b

  • SHA1

    5886701906bdbb80ddb239bd8a525f60d15d6582

  • SHA256

    238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540

  • SHA512

    629cf976574aeb82e7c09e59c162c39ed0bf83954dad585b755e3f1a8864d1122d4539d63a536551047f426a2013636de9bc51f79137a3109c099ecb294b72c3

  • SSDEEP

    98304:NdhBCGKiWTRD9fZLK4jIKAf2aTiEus/U/OdX:bhBCOop9hvjCuaT6sMOV

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\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe
    "C:\Users\Admin\AppData\Local\Temp\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Users\Admin\AppData\Local\Temp\is-M40N6.tmp\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-M40N6.tmp\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp" /SL5="$60102,4102327,54272,C:\Users\Admin\AppData\Local\Temp\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.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:4332
      • 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:4136
      • 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:1160

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-2MKQC.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-2MKQC.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • C:\Users\Admin\AppData\Local\Temp\is-M40N6.tmp\238683778fd97698f4af239018654bbbef1dc192d80fa73c82d3185d9ed8d540.tmp

          Filesize

          692KB

          MD5

          00f15ee57af82fc40ac1ec609d1810a4

          SHA1

          6abfae4f73ade5af54d267c02389daf49abd6a51

          SHA256

          20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847

          SHA512

          f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c

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

          Filesize

          3.5MB

          MD5

          126da95d5b058cdc8cfc5178f7a3a85f

          SHA1

          4ca6728214dea16427ea6ba446813531b3a66eee

          SHA256

          f329de6e3b2598a2d504eb4b84eab83aeb216f987b518195cbb2b679634b14d5

          SHA512

          62027637e0ff9facd9658ac3e3353944852b142ed1970782f6b72f955c536ac69d11a3d73d3fa025f840df9207eae30aeba14ae65db89dfc5df4955fa4e598c8

        • memory/1160-92-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-78-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-116-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-113-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-109-0x0000000000AB0000-0x0000000000B52000-memory.dmp

          Filesize

          648KB

        • memory/1160-108-0x0000000000AB0000-0x0000000000B52000-memory.dmp

          Filesize

          648KB

        • memory/1160-107-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-66-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-104-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-101-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-69-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-72-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-75-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-98-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-81-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-84-0x0000000000AB0000-0x0000000000B52000-memory.dmp

          Filesize

          648KB

        • memory/1160-87-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1160-95-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/1952-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1952-67-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1952-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/4136-63-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/4136-60-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/4136-59-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/4136-58-0x0000000000400000-0x0000000000782000-memory.dmp

          Filesize

          3.5MB

        • memory/4332-7-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4332-68-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB