Analysis

  • max time kernel
    146s
  • max time network
    152s
  • 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, 06:36

General

  • Target

    e2739f62ff16130a225758540a9978734a8ca37d003f134ea2b763ccbda7a2c5.exe

  • Size

    3.7MB

  • MD5

    f4684c8fce49ce34e698dbd548f4ef60

  • SHA1

    b1f73a31486c7788aeb66fd11796c4b75f335ebf

  • SHA256

    e2739f62ff16130a225758540a9978734a8ca37d003f134ea2b763ccbda7a2c5

  • SHA512

    3f76eda0b120d5bd141bb25d7b78a4a25cc3710277f1bda636b8c2f829cebb98213ae93e95ab1bf06468cd608b872a7e2c421c6adfbe513766eadc71b579fb47

  • SSDEEP

    98304:NsPoi9i/TB+EGsv1f41n3f3oXIywgwptGkTBZhHsyCAkdu7:ziEwEDN41nCIBpNbhHsrAkM

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 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\e2739f62ff16130a225758540a9978734a8ca37d003f134ea2b763ccbda7a2c5.exe
    "C:\Users\Admin\AppData\Local\Temp\e2739f62ff16130a225758540a9978734a8ca37d003f134ea2b763ccbda7a2c5.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:336
    • C:\Users\Admin\AppData\Local\Temp\is-964LV.tmp\e2739f62ff16130a225758540a9978734a8ca37d003f134ea2b763ccbda7a2c5.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-964LV.tmp\e2739f62ff16130a225758540a9978734a8ca37d003f134ea2b763ccbda7a2c5.tmp" /SL5="$C0168,3564649,54272,C:\Users\Admin\AppData\Local\Temp\e2739f62ff16130a225758540a9978734a8ca37d003f134ea2b763ccbda7a2c5.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:3936
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3280
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1988

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-6MOTC.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-964LV.tmp\e2739f62ff16130a225758540a9978734a8ca37d003f134ea2b763ccbda7a2c5.tmp

          Filesize

          692KB

          MD5

          3e58a9d5830b25c2662c530eb10f9fd5

          SHA1

          de246ec71a420cb6097dad238df4194c6ea193cb

          SHA256

          da4b8d3ae61ebcfee90d1bf6990aefbc7e72a5648b823c88c3b2d6d7b5e5ecfb

          SHA512

          8cd131d67edd7058ae9d5b6686cfc986ecfb6b2c240f4b5d4241373ae553af4da35ea28a383cbbd84608c522743689afe4d4856be2a07edca002e7f2dd13281f

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

          Filesize

          3.9MB

          MD5

          8b7a8300632f55fcb6514d0b5cb8d264

          SHA1

          ea1aade42e099613bd82700f47ffd96d9a513d70

          SHA256

          30fb534ee2d55b0035d13ce9a194369a107e4fe9c1d519afebfc62fb674d1f36

          SHA512

          48ac973533534659f7792501d77601becfb6c2dcf529503e43a4aea27f9a764c376fc82ad1f2625c80b3f6fa8afbb5ec5e8694a542be45cfd7acc28c0d5cbd80

        • memory/336-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/336-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/336-60-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1988-101-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-66-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-105-0x0000000000B00000-0x0000000000BA2000-memory.dmp

          Filesize

          648KB

        • memory/1988-104-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-59-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-110-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-95-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-62-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-98-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-106-0x0000000000B00000-0x0000000000BA2000-memory.dmp

          Filesize

          648KB

        • memory/1988-69-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-72-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-75-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-78-0x0000000000B00000-0x0000000000BA2000-memory.dmp

          Filesize

          648KB

        • memory/1988-80-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-86-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-89-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/1988-92-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/3280-56-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/3280-64-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/3280-52-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/3280-54-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/3280-55-0x0000000000400000-0x000000000047F000-memory.dmp

          Filesize

          508KB

        • memory/3936-61-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/3936-7-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB