Analysis

  • max time kernel
    143s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    25/03/2024, 02:29

General

  • Target

    e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11.exe

  • Size

    2.0MB

  • MD5

    c38657e4d1f8fa6d62e4d6206660617f

  • SHA1

    42b07485195e3bf7a5d67b838c8c397e531492bc

  • SHA256

    e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11

  • SHA512

    1cbf1697e6cc5103975bf4a2c008f8845d4620caa21b13c8123ba51ce1d66e19c8e768d78f88d0b6627e80d3a7f9ce017a81bb4d6fef8a8c873bbdbaec19c483

  • SSDEEP

    49152:32oYfZz5qNVwfp98z/D7P/VFPjd70xiw4F+WUM:moYfCVwfXo/33R70ElpUM

Malware Config

Extracted

Family

socks5systemz

C2

http://bessjri.com/search/?q=67e28dd83f0bf1291606a9177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f171ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfc12c8ee91

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 19 IoCs
  • 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11.exe
    "C:\Users\Admin\AppData\Local\Temp\e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Users\Admin\AppData\Local\Temp\is-94V06.tmp\e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-94V06.tmp\e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11.tmp" /SL5="$4010A,1772233,54272,C:\Users\Admin\AppData\Local\Temp\e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2540
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:872
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2500

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

          Filesize

          2.0MB

          MD5

          173eccf8f011bb5b462c3b7c7adad629

          SHA1

          cb3ccf6a3ba8a1dc2fa0a090cb459db2360599e6

          SHA256

          2b76c0db5e4bd3cd4f672527749e5a448204b46158c6d91e937b9261d69922a9

          SHA512

          f898b90178dd7dac97d090bc310555dc0d311e36cc13ab8b552361b44aa82aa8e6bcb8d693ccee7ed13fbfb93951b0da5eae27b36de7137bc32db74e7d1a1c46

        • \Users\Admin\AppData\Local\Temp\is-94V06.tmp\e604beaf6d3c8bddc0c664babf465e6210f53fdf1745ad8173a34bec3d35cb11.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • memory/872-45-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/872-49-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/872-46-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/872-44-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-75-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-68-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-105-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-51-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-53-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-102-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-98-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-56-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-95-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-92-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-61-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-62-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-65-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-89-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-71-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-74-0x00000000022C0000-0x0000000002362000-memory.dmp

          Filesize

          648KB

        • memory/2500-86-0x00000000022C0000-0x0000000002362000-memory.dmp

          Filesize

          648KB

        • memory/2500-77-0x00000000022C0000-0x0000000002362000-memory.dmp

          Filesize

          648KB

        • memory/2500-82-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2500-85-0x0000000000400000-0x0000000000610000-memory.dmp

          Filesize

          2.1MB

        • memory/2540-42-0x0000000003740000-0x0000000003950000-memory.dmp

          Filesize

          2.1MB

        • memory/2540-58-0x0000000003740000-0x0000000003950000-memory.dmp

          Filesize

          2.1MB

        • memory/2540-57-0x0000000000250000-0x0000000000251000-memory.dmp

          Filesize

          4KB

        • memory/2540-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2540-9-0x0000000000250000-0x0000000000251000-memory.dmp

          Filesize

          4KB

        • memory/2904-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2904-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB