Analysis

  • max time kernel
    147s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25/03/2024, 02:21

General

  • Target

    c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.exe

  • Size

    2.0MB

  • MD5

    fe4c1aa2eebc57c4d40a044e96f5d487

  • SHA1

    aa76ba4df9b79489d59d547e58720d015d6d2c98

  • SHA256

    c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2

  • SHA512

    c53cb703a60672c742d5a9b1d7c878d6780f6b76998204138c93286efd787b052a0b1c261fb2ebcbe7f73ecc2488f3a22a478e1d8660facd3ddd989808f06caa

  • SSDEEP

    49152:32AgRwW0LztkRUZpA6DTWt8C7G1lW2sKwTIAM:mUEUZ++2a1EfXM

Malware Config

Extracted

Family

socks5systemz

C2

http://dlsqrpd.info/search/?q=67e28dd8680cf4794658a44a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978f571ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dfc12c3e795

http://dlsqrpd.info/search/?q=67e28dd8680cf4794658a44a7c27d78406abdd88be4b12eab517aa5c96bd86e8938748885a8bbc896c58e713bc90c91e36b5281fc235a925ed3e56d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c1ec969938c56f

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 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\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.exe
    "C:\Users\Admin\AppData\Local\Temp\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2340
    • C:\Users\Admin\AppData\Local\Temp\is-25Q6S.tmp\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-25Q6S.tmp\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.tmp" /SL5="$4014E,1762897,54272,C:\Users\Admin\AppData\Local\Temp\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1612
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:3004
      • C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe
        "C:\Users\Admin\AppData\Local\Color Picker\colorpicker32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2568

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

          3333ba10cc434e864c4f009cb39b928e

          SHA1

          86d42dd2ad3a7d3d625c32d5d7068a01bf7297a2

          SHA256

          a6cac357590d02c9382446eb155af147078d668c848c754fa0d28bb0ce829984

          SHA512

          98fc5453e35086dfa2892791fa40746afddc9ccaf54bf5c9d3bfafb220d22cc2b95b7fb9065638110b5ac92a45ede814b3d35541e7ec04af4a87c96191eea479

        • \Users\Admin\AppData\Local\Temp\is-25Q6S.tmp\c5a44d49487fc4ef176fab38c0761607e5f1005588079b1ccca24f5b11bcbde2.tmp

          Filesize

          677KB

          MD5

          bb16a1aed23a42be299fa83942dc45cc

          SHA1

          eef3b71f03f3ea6148a08bf4ba6d3bc2239a56ba

          SHA256

          2fbf5d1a94ff7aa773d0abe9e2216f0347f47083bf66632e516b9e59ede819df

          SHA512

          bd1c5cf999c8824946906a6242309b41e6bcc926733107e87787ecb70c4e4d78ae395fcc9033606a72f08fee98103957063b3a47cd74e9e395d77c75287fd0b4

        • \Users\Admin\AppData\Local\Temp\is-BD6H8.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-BD6H8.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • memory/1612-9-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/1612-43-0x0000000003400000-0x0000000003611000-memory.dmp

          Filesize

          2.1MB

        • memory/1612-58-0x0000000003400000-0x0000000003611000-memory.dmp

          Filesize

          2.1MB

        • memory/1612-57-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/1612-55-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2340-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2340-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2340-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2568-84-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-75-0x0000000002630000-0x00000000026D2000-memory.dmp

          Filesize

          648KB

        • memory/2568-51-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-106-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-56-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-103-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-101-0x0000000002630000-0x00000000026D2000-memory.dmp

          Filesize

          648KB

        • memory/2568-61-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-64-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-65-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-68-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-71-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-74-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-53-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-81-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-100-0x0000000002630000-0x00000000026D2000-memory.dmp

          Filesize

          648KB

        • memory/2568-87-0x0000000002630000-0x00000000026D2000-memory.dmp

          Filesize

          648KB

        • memory/2568-88-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-91-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-94-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/2568-97-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3004-44-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3004-45-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3004-46-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB

        • memory/3004-49-0x0000000000400000-0x0000000000611000-memory.dmp

          Filesize

          2.1MB