Malicious PDF — malware analysis report

Static analysis result for SHA-256 2256e4cce8c98816…

MALICIOUS

PDF

34.0 KB Created: 2021-07-02 03:07:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f8299d522381ab8c415314d7807a575b SHA-1: 1453913ba367c92cca6d935254eb3ab9c2dec8aa SHA-256: 2256e4cce8c98816d1400e234ffe430c48a2704d223c565c01e427468003d1d4
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.co/app/431946152/roblox-paypal-hack-game-hack PDF link annotation
    • http://lib.stie-aub.ac.id/repository/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/minecraft-116-free_GM479516143.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/hack-robar-cuentas-de-roblox-2021-akaka_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/hacks-roblox-pc_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-skywars-infinite-wins-hack_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-no-verivaction_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/robux-card-codes-free_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/work-at-pizza-place-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/cool-roblox-t-shirts-free-shipping_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/transparent-roblox-shirt-template-free-shipping_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-promo-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-royale-high-cheats-for-diamonds-2021_GM431946152.pdfIn 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_off00002c79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C79 22696 bytes
SHA-256: 14e502c6ec6aaa7fb4a4536a20ca1845eb4096281c3dc2bbfc306c8051da7bc6
font_01_sfnt_off00005f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F48 19164 bytes
SHA-256: 806a53d93dffe5a325ae65b3daa47f7bf99bbf5c0b28e6d3a1f349574322bad9

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