Analysis

  • max time kernel
    147s
  • max time network
    151s
  • 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, 12:15

General

  • Target

    5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe

  • Size

    2.0MB

  • MD5

    ded765bc5ba4afdd70cdca87b06e031f

  • SHA1

    e422aec0d328480a4de087d57eb4c4ff5d4aba5e

  • SHA256

    5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2

  • SHA512

    3abeab5b8268a885ed4b86a5dd7dbc83cfa4d4e53473c55fb92f7347e9732f108fdfcec3b8f1d3a1153c96dd44cd25224df343ded65ba54da603bdd5093bbfb8

  • SSDEEP

    49152:32qrMGcmhsZWMZA9wvRXHURUwDbNVrhs2zFb+Z90se7D:m6V0WMZXXiFbjrhs21w9bc

Malware Config

Extracted

Family

socks5systemz

C2

http://dixrnua.info/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c9e994933e

http://dixrnua.info/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12eab517aa5c96bd86ee96854f855a8bbc896c58e713bc90c91936b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949b32cb6e9f13

Signatures

  • Detect Socks5Systemz Payload 4 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\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe
    "C:\Users\Admin\AppData\Local\Temp\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4236
    • C:\Users\Admin\AppData\Local\Temp\is-UB8J3.tmp\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-UB8J3.tmp\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp" /SL5="$50222,1769802,54272,C:\Users\Admin\AppData\Local\Temp\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:844
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4600
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3548
  • 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=1028 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4836

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            886KB

            MD5

            134bf2c35436cda9247ec2b92dcc1ea8

            SHA1

            a375d0b80ce52ddaed9686a812a39905a110d51e

            SHA256

            bf16475425daee7dcfc416a89de65edb51e464df3df2f8432c5828ad36d780e7

            SHA512

            4aaa2013bead9df467b2e0dcc9225de16fca4e6356facc9db87c0a5aec6e37214b7ebd297e05e9032c5536dbbb88c2bfb46e6a33ec59ec8b14dd02d8270b3aca

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

            Filesize

            2.1MB

            MD5

            a689446e3c009a816949c13a4369ef96

            SHA1

            9da43499c84cb0e5fb3fdc2d9c5862dbc7c30071

            SHA256

            8c605cb6c45bc30ca483ad375e31dafe212c9543a8f3ce27e4c93d0961758345

            SHA512

            d4fce27bdcf05afec2e572639e87b86226e457f4aebe11886ae44df111087a75eae5a986aca964bef2070c2b4eda146ab1f8b7ad3c0883b54fe226f4dfc9935c

          • C:\Users\Admin\AppData\Local\Temp\is-3274G.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • C:\Users\Admin\AppData\Local\Temp\is-UB8J3.tmp\5d56c9f85ca9374aee5fb7a4fdec2ba0d41123a39d74836419b40d35c6f29ee2.tmp

            Filesize

            677KB

            MD5

            92f7775908bb12183914bb0753782913

            SHA1

            8d1091da36832942d48f2fe9a1a216fdd556b9c4

            SHA256

            a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

            SHA512

            7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

          • memory/844-6-0x0000000002240000-0x0000000002241000-memory.dmp

            Filesize

            4KB

          • memory/844-51-0x0000000002240000-0x0000000002241000-memory.dmp

            Filesize

            4KB

          • memory/844-48-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/3548-77-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-63-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-95-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-44-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-46-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-91-0x00000000008B0000-0x0000000000952000-memory.dmp

            Filesize

            648KB

          • memory/3548-90-0x00000000008B0000-0x0000000000952000-memory.dmp

            Filesize

            648KB

          • memory/3548-49-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-89-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-54-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-55-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-57-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-60-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-86-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-66-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-67-0x00000000008B0000-0x0000000000952000-memory.dmp

            Filesize

            648KB

          • memory/3548-73-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-83-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3548-79-0x00000000008B0000-0x0000000000952000-memory.dmp

            Filesize

            648KB

          • memory/3548-80-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/4236-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/4236-47-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/4600-41-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/4600-37-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/4600-38-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/4600-42-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB