Analysis

  • max time kernel
    140s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    11/08/2024, 19:46

General

  • Target

    fc0671b8e98277bcbd149b8d0baf40ad80a76fa9f819c30937cd3d2842902060.exe

  • Size

    4.0MB

  • MD5

    d46dd478af53d31763a373bc8ed791c9

  • SHA1

    078edd4efeec7cf4eba8b568a28378f6db267102

  • SHA256

    fc0671b8e98277bcbd149b8d0baf40ad80a76fa9f819c30937cd3d2842902060

  • SHA512

    08180b30ea41e5d5920f4192fce157312f6762fcde30f3c59f1fe600b912d46e86611f40bb3671c647853b1db454b40d19d5de3a80bd65d670835a89678b1467

  • SSDEEP

    98304:N9QIkrnW64oADofd5UwHi+igiHQtSnYc2h4iaBVgSgUNK1Y468dX:EIkrnWGADg/Hi+PiooYc64iaBZNK1N5V

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc0671b8e98277bcbd149b8d0baf40ad80a76fa9f819c30937cd3d2842902060.exe
    "C:\Users\Admin\AppData\Local\Temp\fc0671b8e98277bcbd149b8d0baf40ad80a76fa9f819c30937cd3d2842902060.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Users\Admin\AppData\Local\Temp\is-8HP0L.tmp\fc0671b8e98277bcbd149b8d0baf40ad80a76fa9f819c30937cd3d2842902060.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-8HP0L.tmp\fc0671b8e98277bcbd149b8d0baf40ad80a76fa9f819c30937cd3d2842902060.tmp" /SL5="$30156,3890354,54272,C:\Users\Admin\AppData\Local\Temp\fc0671b8e98277bcbd149b8d0baf40ad80a76fa9f819c30937cd3d2842902060.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:2352
      • 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:2276
      • 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:2792

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Users\Admin\AppData\Local\Temp\is-8HP0L.tmp\fc0671b8e98277bcbd149b8d0baf40ad80a76fa9f819c30937cd3d2842902060.tmp

          Filesize

          692KB

          MD5

          00f15ee57af82fc40ac1ec609d1810a4

          SHA1

          6abfae4f73ade5af54d267c02389daf49abd6a51

          SHA256

          20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847

          SHA512

          f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c

        • \Users\Admin\AppData\Local\Temp\is-N4LKB.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-N4LKB.tmp\_isetup\_isdecmp.dll

          Filesize

          13KB

          MD5

          a813d18268affd4763dde940246dc7e5

          SHA1

          c7366e1fd925c17cc6068001bd38eaef5b42852f

          SHA256

          e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

          SHA512

          b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

        • \Users\Admin\AppData\Local\Temp\is-N4LKB.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

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

          Filesize

          3.3MB

          MD5

          ada355421a957dcedf2d67f0e5145b53

          SHA1

          1d4a00c0fd67e67d7826f96c4f90b3c28fd3a11d

          SHA256

          3c3f36b32f82b8e63e5ebe6f93fac92fe5119a67e8aa4b8d53adf59612e94d95

          SHA512

          445c72ad02ad3c9d765b95b3d95371f46728f3bfbb54a59470c089b3de3a183c5a7418379f471ad44a158326f35a87e094697facb2fcdef3e6b71e75199b590b

        • memory/2136-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2136-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/2136-69-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2276-65-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2276-60-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2276-61-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2352-74-0x0000000004BC0000-0x0000000004F0A000-memory.dmp

          Filesize

          3.3MB

        • memory/2352-11-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2352-59-0x0000000004BC0000-0x0000000004F0A000-memory.dmp

          Filesize

          3.3MB

        • memory/2352-70-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2792-90-0x0000000002670000-0x0000000002712000-memory.dmp

          Filesize

          648KB

        • memory/2792-99-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-77-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-80-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-83-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-86-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-89-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-67-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-94-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-73-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-102-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-105-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-106-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-111-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB

        • memory/2792-112-0x0000000002670000-0x0000000002712000-memory.dmp

          Filesize

          648KB

        • memory/2792-113-0x0000000002670000-0x0000000002712000-memory.dmp

          Filesize

          648KB

        • memory/2792-117-0x0000000000400000-0x000000000074A000-memory.dmp

          Filesize

          3.3MB