Analysis

  • max time kernel
    143s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    25/03/2024, 02:19

General

  • Target

    acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.exe

  • Size

    2.1MB

  • MD5

    641f8516e40cd57175e08290cb569e8f

  • SHA1

    8660b99ea39ecee95cdaf6de87d6db1fb6f6184b

  • SHA256

    acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947

  • SHA512

    73eacb2fd659ff803ec850bf9feb431d9b456b6224ab052da8a60da9517b9b998a30165a7c8926365b78efe8e36d1dce2ac7bacec29bb9fa07eb7a63ab64228b

  • SSDEEP

    49152:320rxrsX/GZZlreAilqYVPkCwA4hd74RjsXdHk791O/vVpYaFhgC9M:mgS/kZlre9kYVMCvAwjMmHm//M

Malware Config

Extracted

Family

socks5systemz

C2

http://bhylzno.com/search/?q=67e28dd8690cfb204406a51a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978fe71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfc12c2ec97

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 19 IoCs
  • 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\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.exe
    "C:\Users\Admin\AppData\Local\Temp\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Users\Admin\AppData\Local\Temp\is-LBM9P.tmp\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-LBM9P.tmp\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.tmp" /SL5="$30142,1854051,54272,C:\Users\Admin\AppData\Local\Temp\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1184
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2664
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3020

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

          Filesize

          2.1MB

          MD5

          a0442a3ee5560ac72150b3ec3ab0859e

          SHA1

          242561c773ae3209fec6c13db2585c726db8a2f5

          SHA256

          c366fd01dc885a63bcefcc3932cfb73bcb087843a026addebfd5164f6cbdb8d4

          SHA512

          710320eb7c9eb1e7df44c035d35f3d075faae243eb0b157db617662a0eac8fc426432f1aa3d4b49d21f2f1aae8fabd81284b19a5497456dbe6c05b393d8ecae7

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

          Filesize

          1.4MB

          MD5

          7efa1f8d49636900d901ea80b3bcef86

          SHA1

          741aad301f71f1dd66b3e4fd872addc62bf83855

          SHA256

          e547270c86eab136887263517d04b80389189c1a6aa859b85985bf04b7941511

          SHA512

          8faf2ca051d8d78fa37880150dd59710c8349dd1b35b480d4ce7fd78a218a905f881d86ed58a2533ba824319570b3651c84a9ec77b854e1151c1af98d396330b

        • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe

          Filesize

          647KB

          MD5

          35a78e757f600126bc215385af76d55b

          SHA1

          ad5f317def5e8696d769cd3e01a747c7bd472d44

          SHA256

          fb1a7569889e6ab5be24c11b1a0df36decea51524fab6189b492eecbe3dad4e4

          SHA512

          48f0a857192c4dbf81535ee978b1721de4d6b466dd117c6d6fcb01785a4301fb1446963969e521ac30f06a2eedcbd47039d5b6b0196962ca1d42ff2b2ffe60a5

        • \Users\Admin\AppData\Local\Temp\is-3M2DD.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-3M2DD.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Local\Temp\is-LBM9P.tmp\acf1a8ba6e2046871a9aee94d88264ec9e40906beace50132592996bba3b7947.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

        • memory/1184-57-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/1184-43-0x00000000035B0000-0x00000000037D7000-memory.dmp

          Filesize

          2.2MB

        • memory/1184-9-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/1184-58-0x00000000035B0000-0x00000000037D7000-memory.dmp

          Filesize

          2.2MB

        • memory/1184-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/1960-1-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/1960-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2664-45-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/2664-48-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/2664-49-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/2664-44-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-62-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-76-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-53-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-61-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-51-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-65-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-68-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-71-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-74-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/3020-56-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-77-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/3020-82-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-85-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-86-0x0000000002650000-0x00000000026F2000-memory.dmp

          Filesize

          648KB

        • memory/3020-89-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-92-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-95-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-98-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-102-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB

        • memory/3020-105-0x0000000000400000-0x0000000000627000-memory.dmp

          Filesize

          2.2MB