Analysis

  • max time kernel
    148s
  • 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
    12/08/2024, 00:22

General

  • Target

    ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe

  • Size

    4.2MB

  • MD5

    160114a920a57d94e72bec263d148e31

  • SHA1

    f9f5b716c60fc58860b5e277bf45a1e6db1696ed

  • SHA256

    ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375

  • SHA512

    4210915d9d982b165a7307a78f29619f68ced17d4b4cc2e2b282c202e46ace59e0882927b9ed54f6543fbc8f78e7b3a62817e18023ba41026998ac00e0cdbf36

  • SSDEEP

    98304:NoS0ynlNKBUU+JDU2nuNt013kszpB2ahv2dX:WCnTRP801nn52V

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\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe
    "C:\Users\Admin\AppData\Local\Temp\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3788
    • C:\Users\Admin\AppData\Local\Temp\is-OL5G4.tmp\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-OL5G4.tmp\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp" /SL5="$50216,4080798,54272,C:\Users\Admin\AppData\Local\Temp\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.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:4028
      • 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:1456
      • 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:3288

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-LE5VB.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-LE5VB.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • C:\Users\Admin\AppData\Local\Temp\is-OL5G4.tmp\ca15964bb8b10d3e4a27ef007576df57673fb57c11e6f9ddca368158c10a1375.tmp

          Filesize

          692KB

          MD5

          00f15ee57af82fc40ac1ec609d1810a4

          SHA1

          6abfae4f73ade5af54d267c02389daf49abd6a51

          SHA256

          20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847

          SHA512

          f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c

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

          Filesize

          3.5MB

          MD5

          f1dacff0b177e27bbce3a3da80ae5a66

          SHA1

          eb9aac1538cb2320ec19ee1b0cb6d6d4d46cff2e

          SHA256

          665c2718f0231eefd6201c21a474e6d7e8824dbcc1ab841e5d667f934dcc6ea9

          SHA512

          5af242c7fb5ca26ae34980cbb4f5ead3e5e70e2b126f8794daf079d85cb8a7b7ca4fd9c68b0f2b8492a5cd5194efee4c225dc95a818c0c29bf433aaf2f571a27

        • memory/1456-59-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/1456-63-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/1456-61-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/1456-58-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-69-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-100-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-115-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-66-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-112-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-108-0x0000000002580000-0x0000000002622000-memory.dmp

          Filesize

          648KB

        • memory/3288-107-0x0000000002580000-0x0000000002622000-memory.dmp

          Filesize

          648KB

        • memory/3288-72-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-75-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-78-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-81-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-84-0x0000000002580000-0x0000000002622000-memory.dmp

          Filesize

          648KB

        • memory/3288-88-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-91-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-94-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-97-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-106-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3288-103-0x0000000000400000-0x000000000077B000-memory.dmp

          Filesize

          3.5MB

        • memory/3788-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3788-67-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3788-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/4028-10-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4028-68-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB