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
    23/03/2024, 11:26

General

  • Target

    d85357190e6be1331036f8cf9225d5c2.exe

  • Size

    2.0MB

  • MD5

    d85357190e6be1331036f8cf9225d5c2

  • SHA1

    f5c994accc9fc16df9cd4f3e9e13fdea952c17be

  • SHA256

    d53e734f9a4bad2b0d36b7484cb445bd377192a77ddb0d753d5aa1d14e9db078

  • SHA512

    82dbbd85980edda224365afca6cd75a5f18c4d967a20aec7b2d180f559a90e3772a8c125cb59f03f7465bfee60b42cb93ed037a202f0e7c1bc7c68385430aa0c

  • SSDEEP

    49152:32VR72rAMT8ztu+OmTPjrF13w6GCDiIXSMr09sYe7D:mVR72cMT8zt8sF13wDCDiarQbc

Malware Config

Extracted

Family

socks5systemz

C2

http://bvctbsd.com/search/?q=67e28dd83958f721120bac1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978f471ea771795af8e05c64bdb22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668ff612c2ec92

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\d85357190e6be1331036f8cf9225d5c2.exe
    "C:\Users\Admin\AppData\Local\Temp\d85357190e6be1331036f8cf9225d5c2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Users\Admin\AppData\Local\Temp\is-CR46R.tmp\d85357190e6be1331036f8cf9225d5c2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-CR46R.tmp\d85357190e6be1331036f8cf9225d5c2.tmp" /SL5="$5014E,1779906,54272,C:\Users\Admin\AppData\Local\Temp\d85357190e6be1331036f8cf9225d5c2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2204
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1232
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2592

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          832KB

          MD5

          6f1ede11b4b791ed96269a359b21916b

          SHA1

          8f2c964a832299c3b3b72dc67e68c4218f825f6c

          SHA256

          82def92c2309d93c2730df89b5528f57b260519c63acbc8ba7bcecca5fbd70e2

          SHA512

          c09ada433ada0f31cfd92951a7cf290ab24797a96097becc18a102e40d8f7a8a68e6e531e1d47bb368604961857d754dd7c3dc658b338c0d88dd2142642cde36

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

          Filesize

          2.1MB

          MD5

          7d196988eb734b40f3cdeb7fcfca2ac7

          SHA1

          936ec9251680709686e08afee2b21947fba3d078

          SHA256

          d1c4a6fdab2ee9d3e29cff002c76f83ece20f08806a11d44432313ae43d061f0

          SHA512

          c91705865a852d3e3a0a4dec16d075705b78c9e5547b9e169896400c6080d4c28b2c58183ac837ab1f858b06ecd5f68d5495a6534dd145ef3c0f15c381d1e91e

        • \Users\Admin\AppData\Local\Temp\is-CR46R.tmp\d85357190e6be1331036f8cf9225d5c2.tmp

          Filesize

          677KB

          MD5

          92f7775908bb12183914bb0753782913

          SHA1

          8d1091da36832942d48f2fe9a1a216fdd556b9c4

          SHA256

          a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

          SHA512

          7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • memory/1232-44-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/1232-43-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/1232-45-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/1232-48-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/1948-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1948-53-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2204-41-0x00000000034E0000-0x00000000036F9000-memory.dmp

          Filesize

          2.1MB

        • memory/2204-7-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/2204-57-0x00000000034E0000-0x00000000036F9000-memory.dmp

          Filesize

          2.1MB

        • memory/2204-56-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/2204-54-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2592-55-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-75-0x00000000022B0000-0x0000000002352000-memory.dmp

          Filesize

          648KB

        • memory/2592-50-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-60-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-63-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-64-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-67-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-70-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-73-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-52-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-81-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-84-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-87-0x00000000022B0000-0x0000000002352000-memory.dmp

          Filesize

          648KB

        • memory/2592-88-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-91-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-94-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-97-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-101-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB

        • memory/2592-104-0x0000000000400000-0x0000000000619000-memory.dmp

          Filesize

          2.1MB