PDF static analysis report

Static analysis result for SHA-256 81bb058503a8a2f4…

SUSPICIOUS

PDF

35.5 KB Created: 2021-06-20 04:16:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a6cffd648566efbffc2a18aaaae2f7eb SHA-1: 642baeedc61977291315406c6e41d0929e58ad6b SHA-256: 81bb058503a8a2f4de720943b73e9f2bd7344e15bd2fe697047c1cb5c2794fa6
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a document body that promises free Robux and game hacks, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests an attempt to redirect the user to a malicious site for further exploitation. No scripts were extracted, but the overall pattern suggests a lure for downloading potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/how-to-get-free-robux-and-fast-game-hack PDF link annotation
    • http://lib.vipklh.ru/repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/hack-robux-wok_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-hack-coin-master-with-root_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-robux-for-ipod_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-hack-into-vip-servers-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/be-free-with-me-roblox-id_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-pet-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-mad-city-comment-cheat_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-for-no-money_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/games-like-minecraft-but-free_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/give-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
    • https://www.roblox.com/.IIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000329d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x329D 22760 bytes
SHA-256: 78549d4dbcd43a9a742568d49d54a00bd262548a7c10e3427288f07d4b4e124b
font_01_sfnt_off0000654f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x654F 19156 bytes
SHA-256: 2c0e9429c0ce6fef21e19bc208af22adbc6cb80ce0c7384763f415745fe8408b

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