Analysis

  • max time kernel
    147s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23/03/2024, 11:56

General

  • Target

    81ff59064aee2985951585849fdb1e72.exe

  • Size

    2.0MB

  • MD5

    81ff59064aee2985951585849fdb1e72

  • SHA1

    86e8537fdec1a12be3a79318ef37ac8137edcbea

  • SHA256

    6e8879c7cf7985de7664ac3d756fce01503d9d18fdef1bfdafd568a4cecde171

  • SHA512

    8e7dcea7445b2f9ffd11991f700036a28f24df3d4b27b252dad829d844fefc25afdd2ce0b7112c71255421b4776b07e388d0d2f413f1177c6222b55e1fe2269d

  • SSDEEP

    49152:32wTpneykPmxLYSeue04pW3bJr7yOtXXJBdb5v/gDe7D:mwTpnHJYSupW31KQXxF3gDc

Malware Config

Extracted

Family

socks5systemz

C2

http://boqgvrr.com/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668ff614c0ec92

http://boqgvrr.com/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12eab517aa5c96bd86e9918e4c875a8bbc896c58e713bc90c91836b5281fc235a925ed3e5cd6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c1ee9c9f3bce68

Signatures

  • Detect Socks5Systemz Payload 4 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\81ff59064aee2985951585849fdb1e72.exe
    "C:\Users\Admin\AppData\Local\Temp\81ff59064aee2985951585849fdb1e72.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2236
    • C:\Users\Admin\AppData\Local\Temp\is-B2KK4.tmp\81ff59064aee2985951585849fdb1e72.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-B2KK4.tmp\81ff59064aee2985951585849fdb1e72.tmp" /SL5="$70122,1696724,54272,C:\Users\Admin\AppData\Local\Temp\81ff59064aee2985951585849fdb1e72.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1820
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1972
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2032

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1.5MB

          MD5

          1ff937612cf1b4379438729ac5b1ece7

          SHA1

          f8301a8d0c19c8d9d86bbc9e53ba52b9a07eef80

          SHA256

          7964b6ce1b2a70985b7d38edf56e9db36d2e191674b7176ad02ff37aafcca29f

          SHA512

          733e5df3337728e7eb68a55e2c5926aa7deffa612d402abfd2fb94f45cce7886dbe260dbe67e3bc793f29704d34eea4e8b5f980b012d66b1bf8bf77a2d269eff

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

          Filesize

          1020KB

          MD5

          7e3fc1d3cd1892a759a9bcdf061b8c14

          SHA1

          a11dfe35ad2a83600dd745e5e59f706f49ce1bb1

          SHA256

          7beff21583972ceac81709a6762ccd8df2298ccfc27d323cdba21968b3d0c7dd

          SHA512

          4414186d85721bc73c99aec431d008c191d7dc79b92349d933637f678d70ee396499910645832df9c9f6b4b66ce5f187100026b884bafdea79001cd66d37bfc7

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

          Filesize

          1.1MB

          MD5

          f2b0c273f2e48f03713ff40f5edae1b2

          SHA1

          3cdee6d814a3a2da682c966869ba4e39e2990870

          SHA256

          551ce64534291afd10acf8914714d2dc6161400d061dfec9d0a4702b4a68a1ec

          SHA512

          d571cd19cedb5e9aa1089989cf816e1c36273deee3384cd5eaa6115b70e00735c2737dd981677bc7293293a0437111201694691063b9eac1b0645c8e57a9217d

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

          Filesize

          2.0MB

          MD5

          7e7e6a14c9a33e1d872bdfcd6f01df79

          SHA1

          7e8e4ab16f34ca58187c6cc607c6762d575bf888

          SHA256

          c2d9b32599563008ad23cc524da0dc03eeabd0f5c75ad92fbc7993531125639a

          SHA512

          d6a68fa321637bdb596aafc92bbe5192e9a0bac2ebbb872fd551e01f2de939f9db2ca7765a124a864aaeb6613c7c86104111cfb0eeeab1be31adc323f328c668

        • \Users\Admin\AppData\Local\Temp\is-B2KK4.tmp\81ff59064aee2985951585849fdb1e72.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

        • \Users\Admin\AppData\Local\Temp\is-N65F7.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-N65F7.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • memory/1820-8-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/1820-42-0x00000000032C0000-0x00000000034C1000-memory.dmp

          Filesize

          2.0MB

        • memory/1820-54-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/1820-56-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/1820-57-0x00000000032C0000-0x00000000034C1000-memory.dmp

          Filesize

          2.0MB

        • memory/1972-43-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/1972-48-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/1972-45-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/1972-44-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-55-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-75-0x0000000002690000-0x0000000002732000-memory.dmp

          Filesize

          648KB

        • memory/2032-106-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-52-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-50-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-60-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-63-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-64-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-67-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-70-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-73-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-103-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-81-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-84-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-87-0x0000000002690000-0x0000000002732000-memory.dmp

          Filesize

          648KB

        • memory/2032-88-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-91-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-94-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-97-0x0000000000400000-0x0000000000601000-memory.dmp

          Filesize

          2.0MB

        • memory/2032-100-0x0000000002690000-0x0000000002732000-memory.dmp

          Filesize

          648KB

        • memory/2032-101-0x0000000002690000-0x0000000002732000-memory.dmp

          Filesize

          648KB

        • memory/2236-53-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2236-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB