Resubmissions

10/08/2024, 22:45

240810-2plqeawepa 10

09/08/2024, 22:04

240809-1y8qvsvgme 10

Analysis

  • max time kernel
    1200s
  • max time network
    1200s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    10/08/2024, 22:45

General

  • Target

    bfea462a7527fc9f2c573fc362bebcfabb0148b7e2521adc106962f9c555b26c.exe

  • Size

    3.5MB

  • MD5

    f4963b9e212361a18b29483845c45e7a

  • SHA1

    78259eab19223e51c013595f1532b2c71e642e20

  • SHA256

    bfea462a7527fc9f2c573fc362bebcfabb0148b7e2521adc106962f9c555b26c

  • SHA512

    5e44489ed3bbf26e46bb1b72c61c74fca6770ef078dfdc1e0b4e662894b853b07b21aceb3f14c9cb5594363a81cc040da72605f14ee3e03a2a073d1fde103650

  • SSDEEP

    98304:NfB9rIRN/3XHGXMcQQnrZABdOpm9XxBClSEYuds:HdMYqQnrCBdbxxAlSEj2

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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\bfea462a7527fc9f2c573fc362bebcfabb0148b7e2521adc106962f9c555b26c.exe
    "C:\Users\Admin\AppData\Local\Temp\bfea462a7527fc9f2c573fc362bebcfabb0148b7e2521adc106962f9c555b26c.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:408
    • C:\Users\Admin\AppData\Local\Temp\is-4R3QF.tmp\bfea462a7527fc9f2c573fc362bebcfabb0148b7e2521adc106962f9c555b26c.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-4R3QF.tmp\bfea462a7527fc9f2c573fc362bebcfabb0148b7e2521adc106962f9c555b26c.tmp" /SL5="$401AE,3442393,54272,C:\Users\Admin\AppData\Local\Temp\bfea462a7527fc9f2c573fc362bebcfabb0148b7e2521adc106962f9c555b26c.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:2976
      • C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32_64.exe
        "C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32_64.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2276
      • C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32_64.exe
        "C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32_64.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2700

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32_64.exe

          Filesize

          3.9MB

          MD5

          4253ec7a70655370b0cfeabbb881e8c0

          SHA1

          cf3747b8191c86dee0e88de5987a25ddd0ae3243

          SHA256

          2626274060858fe7be1c94e042785e8cde47fdb1bd655ad0b2752b3236bbe4f2

          SHA512

          25b10eb4fdf5baf242c340a141d13a5369865a578336a1d7a4e8889318bb379e509c814a47c4eaf1c332d5e982d67dc0e5cfb239ddc70dc2aa0da4005457d1ab

        • \Users\Admin\AppData\Local\Temp\is-4R3QF.tmp\bfea462a7527fc9f2c573fc362bebcfabb0148b7e2521adc106962f9c555b26c.tmp

          Filesize

          692KB

          MD5

          4c66dfdb244a9b27ce722a6e862d2954

          SHA1

          f88c11ea7429f222a6fa40f8b54fee3f3e7391aa

          SHA256

          18be4e3ee14297cac6d3ce462aa38b2996d3b43a6e2e7dab9af431f0af8c67b4

          SHA512

          3d6a1ff5b1ec237ef0db636d089bca6f5c5cdef56415c4b5f39919cae75c7e797a80d8c228dc9e355151db1e8d2cc4b0378f7d24449335d13115efd114628125

        • \Users\Admin\AppData\Local\Temp\is-6C92S.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-6C92S.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • memory/408-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/408-2-0x0000000000401000-0x000000000040B000-memory.dmp

          Filesize

          40KB

        • memory/408-65-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2276-61-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2276-57-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2276-58-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-79-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-95-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-126-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-125-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-69-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-122-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-73-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-74-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-119-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-82-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-85-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-86-0x00000000023D0000-0x0000000002472000-memory.dmp

          Filesize

          648KB

        • memory/2700-90-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-63-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-98-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-101-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-102-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-107-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-109-0x00000000023D0000-0x0000000002472000-memory.dmp

          Filesize

          648KB

        • memory/2700-108-0x00000000023D0000-0x0000000002472000-memory.dmp

          Filesize

          648KB

        • memory/2700-113-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2700-114-0x0000000000400000-0x00000000007E0000-memory.dmp

          Filesize

          3.9MB

        • memory/2976-18-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2976-70-0x0000000006CB0000-0x0000000007090000-memory.dmp

          Filesize

          3.9MB

        • memory/2976-66-0x0000000000400000-0x00000000004BD000-memory.dmp

          Filesize

          756KB

        • memory/2976-55-0x0000000006CB0000-0x0000000007090000-memory.dmp

          Filesize

          3.9MB