Analysis

  • max time kernel
    143s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23/03/2024, 13:36

General

  • Target

    acb4ff970a6f5a421f388d8db9ef27a5.exe

  • Size

    2.0MB

  • MD5

    acb4ff970a6f5a421f388d8db9ef27a5

  • SHA1

    d66686a615df8a8a6f8f36400c13fdc9f55dbb0c

  • SHA256

    cf2c71d279310105bce28d8ca6f90a42733da306d07e2c13acaa1cc90ff8b8be

  • SHA512

    2ab6226fc9ce4cea1376692377483642d5a9e83f0e2becf3ca5d81116b3bb8b62263a9c38521de9b79c4921718885a09070ef6e2d21ed2f2cb253a1e1f482bca

  • SSDEEP

    49152:32SwGJoA887GzJVZ3qTC4SdEdosi9psTJiP9Pe7D:m9A887cJn3oCnEmsisTYc

Malware Config

Extracted

Family

socks5systemz

C2

http://cklweiv.net/search/?q=67e28dd8395dfb2f495fac1e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668cff10c0ed9d

http://cklweiv.net/search/?q=67e28dd8395dfb2f495fac1e7c27d78406abdd88be4b12eab517aa5c96bd86e8978045825a8bbc896c58e713bc90c91936b5281fc235a925ed3e04d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c1ed959b3bcf67

Signatures

  • Detect Socks5Systemz Payload 5 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\acb4ff970a6f5a421f388d8db9ef27a5.exe
    "C:\Users\Admin\AppData\Local\Temp\acb4ff970a6f5a421f388d8db9ef27a5.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2980
    • C:\Users\Admin\AppData\Local\Temp\is-CQ8R6.tmp\acb4ff970a6f5a421f388d8db9ef27a5.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-CQ8R6.tmp\acb4ff970a6f5a421f388d8db9ef27a5.tmp" /SL5="$4010A,1756126,54272,C:\Users\Admin\AppData\Local\Temp\acb4ff970a6f5a421f388d8db9ef27a5.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2432
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2464

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1.2MB

          MD5

          ffeed628afb88f5d88b3d1491a8b328d

          SHA1

          2a0343054acbfb0d46bf42588ea4cf2526ae9be5

          SHA256

          b9b82e17b3477222850be8dae3b75a02932bf46c70a5474527e3b65932285030

          SHA512

          983ce5bb955f848b723502ca8e3612cd4e9ef16bac660aaf7d419d778f2667f0dea01e4d6db782c60a8124beeb871f3eda8bcfdb731f8a25321030371dbfb1e6

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

          Filesize

          2.0MB

          MD5

          c79648f3750d1cefcdb36833c743d263

          SHA1

          894203940c5346ae015be20e017dee9b409ddaf5

          SHA256

          89af231d1c627b6bede896ef3eb73d8bc48e4a9e37accb71b7f6723a3fe5953b

          SHA512

          052ca6068b18f2d7fcdedcfe01021ce480987c8bf09cda91abb719c9647314c276380563ab1b3fba9cf635499e17eed26c75b7c80bdd59f2ca2c7626c3dd9cf8

        • \Users\Admin\AppData\Local\Temp\is-05A82.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-05A82.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Local\Temp\is-CQ8R6.tmp\acb4ff970a6f5a421f388d8db9ef27a5.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

        • memory/2036-58-0x00000000036E0000-0x00000000038E8000-memory.dmp

          Filesize

          2.0MB

        • memory/2036-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2036-9-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/2036-43-0x00000000036E0000-0x00000000038E8000-memory.dmp

          Filesize

          2.0MB

        • memory/2036-57-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/2432-44-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2432-45-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2432-48-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2432-49-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-89-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-75-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-56-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-53-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-107-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-61-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-62-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-65-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-68-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-71-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-74-0x0000000002560000-0x0000000002602000-memory.dmp

          Filesize

          648KB

        • memory/2464-104-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-77-0x0000000002560000-0x0000000002602000-memory.dmp

          Filesize

          648KB

        • memory/2464-82-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-85-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-86-0x0000000002560000-0x0000000002602000-memory.dmp

          Filesize

          648KB

        • memory/2464-51-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-92-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-95-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-98-0x0000000000400000-0x0000000000608000-memory.dmp

          Filesize

          2.0MB

        • memory/2464-99-0x0000000002560000-0x0000000002602000-memory.dmp

          Filesize

          648KB

        • memory/2464-100-0x0000000002560000-0x0000000002602000-memory.dmp

          Filesize

          648KB

        • memory/2980-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2980-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB