Analysis

  • max time kernel
    146s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25/03/2024, 01:34

General

  • Target

    6d91c3bdc4c0d1a6001d34a62ad14fc497b44189aff21f5b63b4bb3d9dc360cd.exe

  • Size

    2.0MB

  • MD5

    3de482d7dcd58f07bb3fc5a5081a0b84

  • SHA1

    0765fe3c19f259e414eb31ad6b6437dfd1d6f4e0

  • SHA256

    6d91c3bdc4c0d1a6001d34a62ad14fc497b44189aff21f5b63b4bb3d9dc360cd

  • SHA512

    fc0c744e93da348537af0297212ddee88b5f5c1bc6d0dfb033625b8800408b96806a4bf3361a5d6e3485619ca17d19a6556ac1e255b0cf4d3aad256b676d929f

  • SSDEEP

    49152:32zOOTSIsjV93c/hvYnYG+7Ptx2J3ViH8Rf/M:m9kMqT+DDOcHiM

Malware Config

Extracted

Family

socks5systemz

C2

http://bwesuwu.com/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfc11c5e990

Signatures

  • Detect Socks5Systemz Payload 2 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.

  • 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\6d91c3bdc4c0d1a6001d34a62ad14fc497b44189aff21f5b63b4bb3d9dc360cd.exe
    "C:\Users\Admin\AppData\Local\Temp\6d91c3bdc4c0d1a6001d34a62ad14fc497b44189aff21f5b63b4bb3d9dc360cd.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Users\Admin\AppData\Local\Temp\is-TRE7J.tmp\6d91c3bdc4c0d1a6001d34a62ad14fc497b44189aff21f5b63b4bb3d9dc360cd.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-TRE7J.tmp\6d91c3bdc4c0d1a6001d34a62ad14fc497b44189aff21f5b63b4bb3d9dc360cd.tmp" /SL5="$70120,1781274,54272,C:\Users\Admin\AppData\Local\Temp\6d91c3bdc4c0d1a6001d34a62ad14fc497b44189aff21f5b63b4bb3d9dc360cd.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2668
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2584
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2588

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1.4MB

          MD5

          9a4ed86c8edebb91b25541a18aa33492

          SHA1

          3c62dd1b0c4fd2c16e5a4b4816b2dccb1520a3f6

          SHA256

          8129a4a3bd3c8a89febe09bb0afb325cf69cbdf9b4b9ae28b229d42aaf283036

          SHA512

          a79e9311ac6f66c3b6a03ec1a5336d430afd30627b5e6692dbc753e3309acf5dc764eb974e46b7fb79addcd25bdca23fc0edc3806016a6056a74e024a7a2b3ce

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

          Filesize

          224KB

          MD5

          15ca62e3cf98a130467961cdd316c67c

          SHA1

          62bd02b44699ba06d543348a049a70628e1246ce

          SHA256

          73b1454ddf3c36f32adba014ee4fb3ef80f758780954813b6aaf052db900ece3

          SHA512

          b7ee956d28fb08b7adf7454f507b760e337ef5043717be0ea9858943d6c22b583deb2eab2b31a451700737a78f54a292939c357379ff8b9a5b470aaf5bef8d3d

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

          Filesize

          169KB

          MD5

          43b80fd1fe3bf06b40df1910897ef9d4

          SHA1

          8aaf63000bfefc8148da9061648cc7ecd54c0db5

          SHA256

          515765e0c9a34744caf080f083b27aa46d59c9c7e367ab16cee592269f94d0a1

          SHA512

          9fe34d78e87f0ee4948d7af9cd976797abe6fef5d4c12dba0a8cd4ace8b9d877e6687fdabebe9fed5d32876731c3dbb618953e70b04cd1772a882cd0754b2e3c

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

          Filesize

          499KB

          MD5

          eec81ede91125cd4bf3fadf8f711590d

          SHA1

          1bc274bca5452956095cbb483fc34f935ff449bb

          SHA256

          25b526850567d73d8180b701cef40b43fa77ee50704a17c595ace70307e40685

          SHA512

          c2ca359f524cdd9dfd1cf7c54743d17a6b1443077e69733de70acf0edf10f64c714d97e3dfd711d9369f8b458123332713e007abd174d6dfed7a3b1c557eaddd

        • \Users\Admin\AppData\Local\Temp\is-BQVB4.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-BQVB4.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Local\Temp\is-TRE7J.tmp\6d91c3bdc4c0d1a6001d34a62ad14fc497b44189aff21f5b63b4bb3d9dc360cd.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

        • memory/1712-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1712-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2584-44-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2584-45-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2584-48-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2584-49-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-56-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-84-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-104-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-101-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-97-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-94-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-91-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-61-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-64-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-65-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-68-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-71-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-74-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-75-0x0000000002540000-0x00000000025E2000-memory.dmp

          Filesize

          648KB

        • memory/2588-81-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-51-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2588-87-0x0000000002540000-0x00000000025E2000-memory.dmp

          Filesize

          648KB

        • memory/2588-88-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2668-60-0x00000000032C0000-0x00000000034D1000-memory.dmp

          Filesize

          2.1MB

        • memory/2668-57-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2668-9-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2668-43-0x00000000032C0000-0x00000000034D1000-memory.dmp

          Filesize

          2.1MB

        • memory/2668-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB