Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/08/2024, 05:28

General

  • Target

    dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe

  • Size

    3.8MB

  • MD5

    29cbf8f374f4c0f73e452762a441f3ba

  • SHA1

    09b1c07cca00bc366b4c04fbcdcc618adc7f1326

  • SHA256

    dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662

  • SHA512

    98819171427e40c3daf80a282975e405243ec2ae0e9b308b4e4773e4ce9f6c8f19ca652dd63d8a2f6651acfc1430189e1cac26ce5316cc3319cafd13d2cd0888

  • SSDEEP

    49152:1v7c6K9KMyjXS5YYOZDg45sXV6G8oaKk2P2nmeYUSUobedhkoHHOo/ureI9QSKNo:NIUhLYj45k5RQyvcLWT9srCUAEdf4

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 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\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe
    "C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4836
    • C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp" /SL5="$50228,3721583,54272,C:\Users\Admin\AppData\Local\Temp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.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:4816
      • 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:320
      • 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:3656

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-1AL8U.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-LFKTU.tmp\dfc8aa15dd9e27606e2e014144cd3b58dda83c86be7df8af50487ec6fcfcc662.tmp

          Filesize

          692KB

          MD5

          5e86b0ec372d2fc1fd230de780e7e967

          SHA1

          b4f60e0014da39c3e7a443deaaaf086aa01f7139

          SHA256

          e8cdcf3e17f27f736c3a131ea7510764087d28909effa27f03de54746452956f

          SHA512

          759f5874ac78a3d630350bbf22a1393cfe41d0914d43452292bce139b6063c045f0f7582aefa197c8c9e37f1bf4e3dd84ce5f5b792bdbabd5e62c419d1b4541d

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

          Filesize

          4.1MB

          MD5

          0f8756b14690ceb6a9f3095dbef3d703

          SHA1

          6b58c27a523847790b1431602504d02fb0fc3db7

          SHA256

          a7d66fb58147e7b2ce5287e9ce2ba71e9fdbaaa003bf5cc697a8a01109dd43bc

          SHA512

          c416605b87727c36b67f9883be89e6a51153c20a5fa7003392291de47eab2111928970f6ffbf72f182607b17d919fa016d7dfcb8fb0bf850c603338b233b176c

        • memory/320-53-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/320-56-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/320-55-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/320-51-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-65-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-77-0x0000000000AE0000-0x0000000000B82000-memory.dmp

          Filesize

          648KB

        • memory/3656-105-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-59-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-102-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-99-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-62-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-96-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-68-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-71-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-74-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-93-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-81-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-84-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-87-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/3656-90-0x0000000000400000-0x0000000000812000-memory.dmp

          Filesize

          4.1MB

        • memory/4816-12-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4816-61-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/4836-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4836-60-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4836-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB