Analysis

  • max time kernel
    145s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23/03/2024, 16:01

General

  • Target

    a43170914d691e584583b0e1023f7d29.exe

  • Size

    2.2MB

  • MD5

    a43170914d691e584583b0e1023f7d29

  • SHA1

    2a814e366e3d6eb503f0eb398496f7e01470d6d2

  • SHA256

    25d5acd334f0d498f7cfef39cfb04259b6f1c0bc066b39bb4f1da85a4a4388c3

  • SHA512

    de188e27905264204e5371fc92b512b4053fe7dc6b05e5659ca93d47a5f986ece802352e14f41488dc2bc01b95876619186a90b4f7009509c1f0d4fa76ecded9

  • SSDEEP

    49152:3260I7BCcfemAVm2VrO5jTzyXyOBuY7hIqrmmA/VzmgH:m6lCcfDAxOlTeXRR7hIqrUV1H

Malware Config

Extracted

Family

socks5systemz

C2

http://ejpopbc.ua/search/?q=67e28dd8395dfb2f495fac1e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668cff18c7ec96

Signatures

  • Detect Socks5Systemz Payload 3 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\a43170914d691e584583b0e1023f7d29.exe
    "C:\Users\Admin\AppData\Local\Temp\a43170914d691e584583b0e1023f7d29.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2280
    • C:\Users\Admin\AppData\Local\Temp\is-HERD8.tmp\a43170914d691e584583b0e1023f7d29.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-HERD8.tmp\a43170914d691e584583b0e1023f7d29.tmp" /SL5="$30130,1970008,54272,C:\Users\Admin\AppData\Local\Temp\a43170914d691e584583b0e1023f7d29.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2992
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2624
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2960

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          64KB

          MD5

          efdc89c9ca51e15428ec69cb3d31aad8

          SHA1

          6f6efe09bf896d13b2c35e1730548cca4445570e

          SHA256

          8e525ff56f95b6f8b013a26f95cfdf9f82e7d4370b720b03c1dd04eebeb90a34

          SHA512

          a70cc5f2a7798e62e96538aa1daa9f5ef0f98a86b56bbc9567ca9b4a2126667228565ee0f497182a7773ae69262ff37afca4bc6703a105e9a025118c29edfc3c

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

          Filesize

          2.2MB

          MD5

          ca07d355c80b303ac9edbf3d9b5492f3

          SHA1

          f09e8e52c3bb53e20f1623321ef2e0da693ebe85

          SHA256

          d144face050d52cf3beba96a24ff6bc79f01a621ee19801dbea49079fee42da8

          SHA512

          8961bc69e102623303d9cd943b9f2df32d8597958a0e3e51a41a84421de1c8037fd9a5e32f86a429f4ec551fcdd9a9b8d1b034a2644d3031abf8b1b5c9e5efdc

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

          Filesize

          72KB

          MD5

          306d0b4352c70e69e60ee2fa1be419ad

          SHA1

          d9ac57670c1091350b6d1293f73491e39a5a4455

          SHA256

          2a29e3edc8bb4997787730b83f87513f9c8a929724c1c25837682a4c3a55d840

          SHA512

          3f11bfde980bf56260c78886f0db125d7c8c68957ff9aac40af9a42004405dd2013a67072150fe2a985b4ae1190a6b54460ec962eb07ddaccad97faa28fe2b45

        • \Users\Admin\AppData\Local\Temp\is-HERD8.tmp\a43170914d691e584583b0e1023f7d29.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • memory/2280-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2280-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2280-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2624-49-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2624-44-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2624-45-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2624-48-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-75-0x00000000022E0000-0x0000000002382000-memory.dmp

          Filesize

          648KB

        • memory/2960-89-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-53-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-105-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-102-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-56-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-98-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-95-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-61-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-62-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-65-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-68-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-71-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-74-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-92-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-77-0x00000000022E0000-0x0000000002382000-memory.dmp

          Filesize

          648KB

        • memory/2960-82-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-85-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2960-86-0x00000000022E0000-0x0000000002382000-memory.dmp

          Filesize

          648KB

        • memory/2960-51-0x0000000000400000-0x0000000000641000-memory.dmp

          Filesize

          2.3MB

        • memory/2992-12-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/2992-58-0x00000000036C0000-0x0000000003901000-memory.dmp

          Filesize

          2.3MB

        • memory/2992-57-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/2992-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2992-43-0x00000000036C0000-0x0000000003901000-memory.dmp

          Filesize

          2.3MB