Analysis

  • max time kernel
    147s
  • max time network
    149s
  • 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, 17:03

General

  • Target

    c7f7c1877928f503efd80427d8ac17083692a79bba6bc14303325a92bd81f868.exe

  • Size

    4.0MB

  • MD5

    d169d8238cc94aa0eecc6012f1fb9784

  • SHA1

    8f7083c57d8ee844b0609f2ef2038498cab2e498

  • SHA256

    c7f7c1877928f503efd80427d8ac17083692a79bba6bc14303325a92bd81f868

  • SHA512

    d71ce66deec82d86e0abd26bfe2fa2acb4f47a78fa0e84e1eb82aba4116c03ff247cc6bbaf4e70f8807a91ea2a39ebefa006b1d3014834c8d45aa6efadd7135a

  • SSDEEP

    98304:NaJfIWMPzX/QRHNupOrv3/Vw0L605bGAAKYdc23XLn72g++qgjidX:IAW4j0u6/tBL6ybGT1dFiZ+qgGV

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\c7f7c1877928f503efd80427d8ac17083692a79bba6bc14303325a92bd81f868.exe
    "C:\Users\Admin\AppData\Local\Temp\c7f7c1877928f503efd80427d8ac17083692a79bba6bc14303325a92bd81f868.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3084
    • C:\Users\Admin\AppData\Local\Temp\is-Q34FE.tmp\c7f7c1877928f503efd80427d8ac17083692a79bba6bc14303325a92bd81f868.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-Q34FE.tmp\c7f7c1877928f503efd80427d8ac17083692a79bba6bc14303325a92bd81f868.tmp" /SL5="$70292,3918893,54272,C:\Users\Admin\AppData\Local\Temp\c7f7c1877928f503efd80427d8ac17083692a79bba6bc14303325a92bd81f868.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:3432
      • 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:3964
      • 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:2920

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-528Q7.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-528Q7.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • C:\Users\Admin\AppData\Local\Temp\is-Q34FE.tmp\c7f7c1877928f503efd80427d8ac17083692a79bba6bc14303325a92bd81f868.tmp

          Filesize

          692KB

          MD5

          00f15ee57af82fc40ac1ec609d1810a4

          SHA1

          6abfae4f73ade5af54d267c02389daf49abd6a51

          SHA256

          20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847

          SHA512

          f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c

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

          Filesize

          3.3MB

          MD5

          9e63b3a339245f091c437106aa93347d

          SHA1

          6031c4b2244c5eb534550ebc19785f109f8ceb69

          SHA256

          5bd0ec94b60095d76a3ba2ba96e501d2a047706428a478a9ff3c7292debf2f1e

          SHA512

          0213853c1d6230f0e9b4f5e112478242a9488f23f5c2bf909024541aa46a9910151398577299d265f7bc0f81248a97fcc006498fb8efe7f1a952c426738e7513

        • memory/2920-93-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-99-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-114-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-111-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-107-0x0000000000B30000-0x0000000000BD2000-memory.dmp

          Filesize

          648KB

        • memory/2920-106-0x0000000000B30000-0x0000000000BD2000-memory.dmp

          Filesize

          648KB

        • memory/2920-65-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-105-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-102-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-68-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-71-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-74-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-77-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-80-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-83-0x0000000000B30000-0x0000000000BD2000-memory.dmp

          Filesize

          648KB

        • memory/2920-85-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-90-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2920-96-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/3084-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3084-66-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3084-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/3432-10-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/3432-67-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/3964-62-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/3964-60-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/3964-58-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB