Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c63ffa1d7617591…

MALICIOUS

PDF

34.5 KB Created: 2021-07-04 19:55:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: d0ddf7ddecf2d53d3e8641aabe93b711 SHA-1: ca9b69a58fcb5620eeefdcbf97afaa7fd1bda4a9 SHA-256: 6c63ffa1d76175918aca3c051190efc118e41443751a94902bdcb00721e9914e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.tw/app/431946152/how-to-get-free-robux-website-game-hack PDF link annotation
    • http://katalog.stikesmukla.ac.id/repository/hack-aimbot-para-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-hack-a-roblox-player_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-robux-surveytool_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/indetectable-cheat-roblox-fly_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-super-jump-hack-2021_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/hacks-on-getting-more-diomonds-in-royale-high-in-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/heists-free-roblox-demo_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/roblox-hack-xbox-one_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/hacks-for-roblox-ro-boxing_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/online-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://katalog.stikesmukla.ac.id/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00003100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3100 21768 bytes
SHA-256: a7a8aa60ac4413e45795e0822a4c62b60e76a017e30772f967f5a30b2edf1f9e
font_01_sfnt_off000060de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DE 19304 bytes
SHA-256: c93debd830b422eae21ec10a608c2d09d6fed7207bb4c45cee900aa0b721bbbd

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