Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/03/2024, 23:34

General

  • Target

    af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.exe

  • Size

    2.0MB

  • MD5

    81a85f3125aefa6f06649cbf53136988

  • SHA1

    ee72a132008d3d1394bb8c00c534014748edf94a

  • SHA256

    af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636

  • SHA512

    e35e322759210c09797a2f0079c2e35c498a278d3a9eaf4e5dcccd8c834828e0d0fb1b2cc3630b76b4b373f3b3e5be252fe0fba65254fd2b9e68f73cb8ae4bf4

  • SSDEEP

    49152:32JBpBDCRjWetUW7NUN3/qLr2CQzB2qaQoe7D:mzpBD2aetUcUN3/ACzpKc

Malware Config

Extracted

Family

socks5systemz

C2

http://bfxpqeh.com/search/?q=67e28dd86a08a32d155da44d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f471ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c2ec96983c

http://bfxpqeh.com/search/?q=67e28dd86a08a32d155da44d7c27d78406abdd88be4b12eab517aa5c96bd86e8968645835a8bbc896c58e713bc90c91c36b5281fc235a925ed3e57d6bd974a95129070b611e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949939ce6c9411

Signatures

  • Detect Socks5Systemz Payload 4 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 19 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.exe
    "C:\Users\Admin\AppData\Local\Temp\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3536
    • C:\Users\Admin\AppData\Local\Temp\is-V6EOA.tmp\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-V6EOA.tmp\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.tmp" /SL5="$C005C,1784413,54272,C:\Users\Admin\AppData\Local\Temp\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4468
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:868
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4724
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3996 --field-trial-handle=2228,i,17475224967547320003,13667387715861799238,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2076

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            2.0MB

            MD5

            e0be643656cf2b26337e1c880860a0ff

            SHA1

            4b142324fce15d65ac607d14b3cc736ad06ec4db

            SHA256

            85f81ec4027dfa1ecadc0cd91ba941563a034abd95f198bae8ed4c1921546483

            SHA512

            e7bf1495f8aae0fcbe4c84c79e852687fc7206d296f4bc1c69a64e94f3db1495ece04a8a39fb0d9db193c1accce42e340f7db427b73dcb06ec76ce57877b3ab1

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

            Filesize

            1.1MB

            MD5

            830a18ea6a283a40876b69064ea13603

            SHA1

            86f84fc9ddf5208336fe98ded7fdda2a97a089e4

            SHA256

            8b6ad42e6826b48e3a90b46f52b8b22394c3caa0c059e75b077b816036ed049e

            SHA512

            2df8eb11bac62aa7cbe5238de82f5529bb90fb2fa20aa6509d876a88a779573e902a48780c5cf4eaf731a6b823bcc203c3e601cd46c180f38faf81c146989d43

          • C:\Users\Admin\AppData\Local\Temp\is-NOBEG.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • C:\Users\Admin\AppData\Local\Temp\is-V6EOA.tmp\af460f770a41c228adf3b601c6577d2f9a94b3b2bb0363257713400f9f9e9636.tmp

            Filesize

            677KB

            MD5

            92f7775908bb12183914bb0753782913

            SHA1

            8d1091da36832942d48f2fe9a1a216fdd556b9c4

            SHA256

            a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

            SHA512

            7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

          • memory/868-38-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/868-37-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/868-41-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/868-42-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/3536-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/3536-47-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/4468-48-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/4468-6-0x0000000000680000-0x0000000000681000-memory.dmp

            Filesize

            4KB

          • memory/4468-50-0x0000000000680000-0x0000000000681000-memory.dmp

            Filesize

            4KB

          • memory/4724-53-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-76-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-46-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-44-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-54-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-57-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-60-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-63-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-66-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-67-0x00000000008F0000-0x0000000000992000-memory.dmp

            Filesize

            648KB

          • memory/4724-73-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-49-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-77-0x00000000008F0000-0x0000000000992000-memory.dmp

            Filesize

            648KB

          • memory/4724-80-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-83-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-86-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-89-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-90-0x00000000008F0000-0x0000000000992000-memory.dmp

            Filesize

            648KB

          • memory/4724-91-0x00000000008F0000-0x0000000000992000-memory.dmp

            Filesize

            648KB

          • memory/4724-95-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB

          • memory/4724-98-0x0000000000400000-0x000000000060A000-memory.dmp

            Filesize

            2.0MB