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
    25/03/2024, 01:32

General

  • Target

    37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe

  • Size

    2.0MB

  • MD5

    2f2b5ff3c33c62109f96e65c1d7601b0

  • SHA1

    aa8cfcbacc165b941199a9d56045933af952f995

  • SHA256

    37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81

  • SHA512

    ce770de242104f4f2fe702724f684ee59973cea11e257d997c18eb9f04487b0a6be9843c7b53070243cc2f1dee2a0e540cf1e379b6548cf40cab74a6fbc967ea

  • SSDEEP

    49152:32m/hFz6e3Bw45KMgwkYfyZYOgzynV0NWp6V/VtqkOVH:mobVwpooYQKcpGahH

Malware Config

Extracted

Family

socks5systemz

C2

http://bfggadb.com/search/?q=67e28dd83955a42b4006aa1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f671ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfc11c4ec96

http://bfggadb.com/search/?q=67e28dd83955a42b4006aa1b7c27d78406abdd88be4b12eab517aa5c96bd86ef91804f815a8bbc896c58e713bc90c91b36b5281fc235a925ed3e55d6bd974a95129070b611e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c1ec969a3fce6c

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\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe
    "C:\Users\Admin\AppData\Local\Temp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Users\Admin\AppData\Local\Temp\is-22D9R.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-22D9R.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp" /SL5="$5014E,1752368,54272,C:\Users\Admin\AppData\Local\Temp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1200
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2980
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2640

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1.4MB

          MD5

          da7c6dde477f01a31cdc1c96e297d8f4

          SHA1

          949bf77ca560fa4a61eb59c6b991032bac86a35d

          SHA256

          50ac1548b92c0375b551a150195308c48715a43d2e64547568d97e982dfeab98

          SHA512

          d990b1d719af7e082c68a0228d53319f414bc00aa1ba77f2612e9534a25c16a5dc5d2c81759626420d7756cca3e37e578cee0a210b84547b72bfd91441845562

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

          Filesize

          978KB

          MD5

          9925afd2c315de9c09e08bc4961cfdb7

          SHA1

          6cf434fc289c144c3e58e1ccb016df2837c18acf

          SHA256

          8673b52c20bb82bca91c676a2c002b82ecfd8c6fec7d40fc6524c4136a812e57

          SHA512

          b02d56498023e4977dacdd115e32d7550f915618f76a3fcf9d4fe1f65db4f37ac683edcd04cca8347f9d22bcf25b48224d6e8b3d49a045018e552819b7eec53f

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

          Filesize

          2.1MB

          MD5

          c963718dcfbf0c912a40a46bafcbe6f1

          SHA1

          8633310a8cc797a59a63d8fd54456893402296f8

          SHA256

          9cc03473e79df79135bfad64f51cc2ab03eeba069494045a91ddf0d2745345f6

          SHA512

          f9191caf21877ed861ad09019abf50c591ad5bcb2a478e4518e3e7aa64af73373d46c81e8829e80ac8be78be47d4ea83ff1e420e59297d1cff1718c37ca35c65

        • \Users\Admin\AppData\Local\Temp\is-22D9R.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp

          Filesize

          677KB

          MD5

          d394fc26de69f06950dc1c71959b0261

          SHA1

          7c9448fc3582f19763eaa8e3c5383b7873aee017

          SHA256

          405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

          SHA512

          63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

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

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • memory/1200-57-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/1200-58-0x00000000035A0000-0x00000000037B1000-memory.dmp

          Filesize

          2.1MB

        • memory/1200-43-0x00000000035A0000-0x00000000037B1000-memory.dmp

          Filesize

          2.1MB

        • memory/1200-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/1200-12-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/2112-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2112-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2640-68-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-76-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-51-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-107-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-56-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-104-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-100-0x0000000002630000-0x00000000026D2000-memory.dmp

          Filesize

          648KB

        • memory/2640-61-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-62-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-65-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-99-0x0000000002630000-0x00000000026D2000-memory.dmp

          Filesize

          648KB

        • memory/2640-71-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-74-0x0000000002630000-0x00000000026D2000-memory.dmp

          Filesize

          648KB

        • memory/2640-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-77-0x0000000002630000-0x00000000026D2000-memory.dmp

          Filesize

          648KB

        • memory/2640-82-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-85-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-86-0x0000000002630000-0x00000000026D2000-memory.dmp

          Filesize

          648KB

        • memory/2640-89-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-92-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-95-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2640-98-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2980-44-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2980-45-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2980-48-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2980-49-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB