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, 14:21

General

  • Target

    4b9151a0fcc00b7ebe774bb2489bc530.exe

  • Size

    2.2MB

  • MD5

    4b9151a0fcc00b7ebe774bb2489bc530

  • SHA1

    40fa43f01b6bdf5e946bb2088fec786f3d3b708a

  • SHA256

    45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07

  • SHA512

    8ea55f1c06178f87edade8fbbd4031905195fa86a422d5e07c6c06f2cf538f4649691d867b740a0c6b2a178ab39f7dfde1a95108266e3dff74df33361930866d

  • SSDEEP

    49152:321Jclh7yWuOym9ASMvcW63qheRFv2vLsmL2H2H5QihKF/nyGH:m1JkuWukASkncRszZ2H2H5NUVnXH

Malware Config

Extracted

Family

socks5systemz

C2

http://buadasg.com/search/?q=67e28dd86a5ef62a130aa5197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668cff12c7ec94

http://buadasg.com/search/?q=67e28dd86a5ef62a130aa5197c27d78406abdd88be4b12eab517aa5c96bd86ee9d8145815a8bbc896c58e713bc90c91936b5281fc235a925ed3e04d6bd974a95129070b611e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c1ed95993cce6e

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\4b9151a0fcc00b7ebe774bb2489bc530.exe
    "C:\Users\Admin\AppData\Local\Temp\4b9151a0fcc00b7ebe774bb2489bc530.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Users\Admin\AppData\Local\Temp\is-V1EP5.tmp\4b9151a0fcc00b7ebe774bb2489bc530.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-V1EP5.tmp\4b9151a0fcc00b7ebe774bb2489bc530.tmp" /SL5="$4010A,1966609,54272,C:\Users\Admin\AppData\Local\Temp\4b9151a0fcc00b7ebe774bb2489bc530.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2724
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2504
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2652

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2.2MB

          MD5

          0341a71415d5c43879d5941ca65396ba

          SHA1

          8526a5a86e7d11b73633e27629351087079d2291

          SHA256

          fe804d96f2cf809d1e13b9df072c5ee2b44fe71164a845d3cea4041d428203ee

          SHA512

          6498e788438dcbf334176011bbf1a12bd98542552b12af56f2b4a8fc385247e1a1f052dba26211fc72ec1357125d6d800638946c427cc1dcd853353ec7d70f0e

        • \Users\Admin\AppData\Local\Temp\is-KL96J.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-KL96J.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Local\Temp\is-V1EP5.tmp\4b9151a0fcc00b7ebe774bb2489bc530.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

        • memory/2180-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2180-52-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2504-47-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2504-43-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2504-44-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2504-48-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-80-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-74-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/2652-105-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-102-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-54-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-98-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/2652-97-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/2652-59-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-60-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-63-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-66-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-69-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-72-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-51-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-96-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-83-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-84-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/2652-87-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-90-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2652-93-0x0000000000400000-0x0000000000642000-memory.dmp

          Filesize

          2.3MB

        • memory/2724-11-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/2724-56-0x00000000036F0000-0x0000000003932000-memory.dmp

          Filesize

          2.3MB

        • memory/2724-55-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/2724-53-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2724-41-0x00000000036F0000-0x0000000003932000-memory.dmp

          Filesize

          2.3MB