Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/03/2024, 16:28

General

  • Target

    fb222ebb6c799f2bd4150c93a45cac3fe803d63cdb21c5eed605de253b22f088.exe

  • Size

    2.2MB

  • MD5

    63e8b616cf52885a6e08c0fa8035bba9

  • SHA1

    d1c0d63e590a28cfc44abaa90f05e6d6e8677672

  • SHA256

    fb222ebb6c799f2bd4150c93a45cac3fe803d63cdb21c5eed605de253b22f088

  • SHA512

    3daaf2a5658956b8ee69f5a087b1d4bc289b07e633d662c7a739890bd13aa80ae6111d9541c71399f223795aff86036c45057d2b11025075fd981888934a2a48

  • SSDEEP

    49152:32TsLSQNQWFvBNHiS0uO7a1n4XRApYm0hSUKvbko4tH:mQtKWF7Hr87NXRAOm02EtH

Malware Config

Extracted

Family

socks5systemz

C2

http://aasctnm.ru/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c1ee969c38

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • 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\fb222ebb6c799f2bd4150c93a45cac3fe803d63cdb21c5eed605de253b22f088.exe
    "C:\Users\Admin\AppData\Local\Temp\fb222ebb6c799f2bd4150c93a45cac3fe803d63cdb21c5eed605de253b22f088.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3964
    • C:\Users\Admin\AppData\Local\Temp\is-55VHL.tmp\fb222ebb6c799f2bd4150c93a45cac3fe803d63cdb21c5eed605de253b22f088.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-55VHL.tmp\fb222ebb6c799f2bd4150c93a45cac3fe803d63cdb21c5eed605de253b22f088.tmp" /SL5="$C0058,1993719,54272,C:\Users\Admin\AppData\Local\Temp\fb222ebb6c799f2bd4150c93a45cac3fe803d63cdb21c5eed605de253b22f088.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4412
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3856
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:1092
  • 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=4088 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3540

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            2.2MB

            MD5

            8e349bff47839474545f2217a5bddcc5

            SHA1

            4ac10a9dbb090a56c5139c00c81bf35eb35bf359

            SHA256

            ba225cea18c80260836604d13bcc8d9934741be009ee19fed27af92952c44c05

            SHA512

            6cf7cc4abcb7b3f3b3d15676c408dac175a2f9192ef61c7a87786f5d129e17e7be75d9b256b8c95e05b4d606a4abfbf740ac05e298fc624754baee117573a453

          • C:\Users\Admin\AppData\Local\Temp\is-55VHL.tmp\fb222ebb6c799f2bd4150c93a45cac3fe803d63cdb21c5eed605de253b22f088.tmp

            Filesize

            677KB

            MD5

            d394fc26de69f06950dc1c71959b0261

            SHA1

            7c9448fc3582f19763eaa8e3c5383b7873aee017

            SHA256

            405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a

            SHA512

            63ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10

          • C:\Users\Admin\AppData\Local\Temp\is-U1TO3.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • memory/1092-78-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-80-0x0000000000900000-0x00000000009A2000-memory.dmp

            Filesize

            648KB

          • memory/1092-99-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-95-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-91-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-88-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-46-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-47-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-85-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-82-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-50-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-64-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-54-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-55-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-75-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-69-0x0000000000900000-0x00000000009A2000-memory.dmp

            Filesize

            648KB

          • memory/1092-58-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-67-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/1092-68-0x0000000000900000-0x00000000009A2000-memory.dmp

            Filesize

            648KB

          • memory/1092-61-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/3856-43-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/3856-42-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/3856-39-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/3856-38-0x0000000000400000-0x0000000000640000-memory.dmp

            Filesize

            2.2MB

          • memory/3964-1-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/3964-48-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/4412-7-0x0000000002240000-0x0000000002241000-memory.dmp

            Filesize

            4KB

          • memory/4412-52-0x0000000002240000-0x0000000002241000-memory.dmp

            Filesize

            4KB

          • memory/4412-49-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB