Analysis

  • max time kernel
    150s
  • max time network
    143s
  • 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, 11:36

General

  • Target

    ff576bc35cf98eee07585ae5b7c88efc.exe

  • Size

    2.0MB

  • MD5

    ff576bc35cf98eee07585ae5b7c88efc

  • SHA1

    df8c450c6966db774d06ab8d2feeb97374cda260

  • SHA256

    5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3

  • SHA512

    a5303ab816eb67f3d517757d07fc8cd1b8a2e6bd4869ca9744405c9ea75c95f5f058301a9ce7ebf99e407504a51d6c879b06018f44dfde24b38d3c1eed815317

  • SSDEEP

    49152:32pu+svTDBZMqdkzssuHTSJf20pom5PRXLFzGHWkme7D:mpfMTDBmeUss8TS52teJXc2kmc

Malware Config

Extracted

Family

socks5systemz

C2

http://aqiydxn.ru/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c644db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe10c9ec9d9e39

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\ff576bc35cf98eee07585ae5b7c88efc.exe
    "C:\Users\Admin\AppData\Local\Temp\ff576bc35cf98eee07585ae5b7c88efc.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3484
    • C:\Users\Admin\AppData\Local\Temp\is-V6U16.tmp\ff576bc35cf98eee07585ae5b7c88efc.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-V6U16.tmp\ff576bc35cf98eee07585ae5b7c88efc.tmp" /SL5="$90054,1756523,54272,C:\Users\Admin\AppData\Local\Temp\ff576bc35cf98eee07585ae5b7c88efc.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4452
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2392
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3428
  • 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=4144 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1188

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            2.1MB

            MD5

            77c8e87124cd5534656bf23a7bc21509

            SHA1

            1531df44ea2092e5e0f89a12a3e77a19400d9451

            SHA256

            c12f75445e83c4dbe480cc92afc4bdd584f6489811b78f7041fb6fd06488a7aa

            SHA512

            7389ddaa558867edf903b3e81bc432833dc055324a52f3e56638ac6fee1834b557a5e2b96266c9ed7f969dd7f51a6b6dc820b5b1f58b88a0972f7192647224e7

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

            Filesize

            384KB

            MD5

            9832a74d5c44f18b931359099d4870bc

            SHA1

            5487117ad4bc433226d5c2092576880381358103

            SHA256

            8e13f1adf4df36d281b72ee4ac3eeae2ca0a641bd45a13c8370c7dd4338bcf13

            SHA512

            84edfb77bdc85cc034468e50e8988f39e184c2df654f795048af087d5db3893953fa7381b2a1109597b56ec2a91c5aece4e848365ed53e7f82a6d4797d46f056

          • C:\Users\Admin\AppData\Local\Temp\is-I0FME.tmp\_isetup\_iscrypt.dll

            Filesize

            2KB

            MD5

            a69559718ab506675e907fe49deb71e9

            SHA1

            bc8f404ffdb1960b50c12ff9413c893b56f2e36f

            SHA256

            2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

            SHA512

            e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

          • C:\Users\Admin\AppData\Local\Temp\is-V6U16.tmp\ff576bc35cf98eee07585ae5b7c88efc.tmp

            Filesize

            677KB

            MD5

            92f7775908bb12183914bb0753782913

            SHA1

            8d1091da36832942d48f2fe9a1a216fdd556b9c4

            SHA256

            a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed

            SHA512

            7e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39

          • memory/2392-40-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/2392-44-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/2392-41-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/2392-39-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-71-0x00000000008C0000-0x0000000000962000-memory.dmp

            Filesize

            648KB

          • memory/3428-63-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-97-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-93-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-46-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-48-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-90-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-51-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-87-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-55-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-56-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-58-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-60-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-84-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-66-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-69-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-81-0x00000000008C0000-0x0000000000962000-memory.dmp

            Filesize

            648KB

          • memory/3428-70-0x00000000008C0000-0x0000000000962000-memory.dmp

            Filesize

            648KB

          • memory/3428-77-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3428-80-0x0000000000400000-0x0000000000611000-memory.dmp

            Filesize

            2.1MB

          • memory/3484-0-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/3484-38-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/3484-2-0x0000000000400000-0x0000000000414000-memory.dmp

            Filesize

            80KB

          • memory/4452-53-0x0000000002100000-0x0000000002101000-memory.dmp

            Filesize

            4KB

          • memory/4452-49-0x0000000000400000-0x00000000004B8000-memory.dmp

            Filesize

            736KB

          • memory/4452-7-0x0000000002100000-0x0000000002101000-memory.dmp

            Filesize

            4KB