Analysis

  • max time kernel
    142s
  • max time network
    128s
  • 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, 18:05

General

  • Target

    4eb51148e42d8dd2984230a60c8875ab34392a88682402a313165a11f10c7837.exe

  • Size

    4.0MB

  • MD5

    9a0df5d45b7380656d77008774b9718f

  • SHA1

    0da60e2621d1c476e5e0113b3be4a672dda1126a

  • SHA256

    4eb51148e42d8dd2984230a60c8875ab34392a88682402a313165a11f10c7837

  • SHA512

    aa81f260fd75824433738495e67e9ca36d6cc3b4b29205acfff96be090f572028c367b2759a3abb5d9614a408cbdb17eee8b8398d6da2c54cda730ba5e57ddf0

  • SSDEEP

    98304:N2q3uFzKIKhO95s6hMwncXQevgsowKkHee2dX:/ebKhOj5cXQevkV

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\4eb51148e42d8dd2984230a60c8875ab34392a88682402a313165a11f10c7837.exe
    "C:\Users\Admin\AppData\Local\Temp\4eb51148e42d8dd2984230a60c8875ab34392a88682402a313165a11f10c7837.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3956
    • C:\Users\Admin\AppData\Local\Temp\is-KK8B6.tmp\4eb51148e42d8dd2984230a60c8875ab34392a88682402a313165a11f10c7837.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-KK8B6.tmp\4eb51148e42d8dd2984230a60c8875ab34392a88682402a313165a11f10c7837.tmp" /SL5="$50214,3911890,54272,C:\Users\Admin\AppData\Local\Temp\4eb51148e42d8dd2984230a60c8875ab34392a88682402a313165a11f10c7837.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:2372
      • 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:2720
      • 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:4348

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\is-GHCQ6.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • C:\Users\Admin\AppData\Local\Temp\is-GHCQ6.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • C:\Users\Admin\AppData\Local\Temp\is-KK8B6.tmp\4eb51148e42d8dd2984230a60c8875ab34392a88682402a313165a11f10c7837.tmp

          Filesize

          692KB

          MD5

          00f15ee57af82fc40ac1ec609d1810a4

          SHA1

          6abfae4f73ade5af54d267c02389daf49abd6a51

          SHA256

          20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847

          SHA512

          f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c

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

          Filesize

          3.3MB

          MD5

          757c4cae9bc90d97df6ffbd8d24d7245

          SHA1

          ed786e2a3b5b88b5e576fa36d936db3b7edb8a08

          SHA256

          74a054d4a06ec97cc14a37cda126970f7f685331ccbb0c3f69186ae34def6c0d

          SHA512

          63800b114837dfb62d6f403365db8031f13b00c9aabcb0e4d1682f6838e458be46301dc1dc58b4f68801fbd82ceaf0e0d859246cd586f5d130acfb71871f7c34

        • memory/2372-7-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2372-68-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2720-58-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/2720-59-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/2720-61-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/2720-63-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/3956-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/3956-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/3956-67-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/4348-69-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-94-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-72-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-75-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-78-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-81-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-84-0x0000000000A90000-0x0000000000B32000-memory.dmp

          Filesize

          648KB

        • memory/4348-86-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-91-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-66-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-97-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-100-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-103-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-106-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-107-0x0000000000A90000-0x0000000000B32000-memory.dmp

          Filesize

          648KB

        • memory/4348-108-0x0000000000A90000-0x0000000000B32000-memory.dmp

          Filesize

          648KB

        • memory/4348-112-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB

        • memory/4348-115-0x0000000000400000-0x0000000000749000-memory.dmp

          Filesize

          3.3MB