Malicious PDF — malware analysis report

Static analysis result for SHA-256 f80f73daac97e956…

MALICIOUS

PDF

43.0 KB Created: 2021-05-10 22:22:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 56831d0085ba22c67815793ca10a8946 SHA-1: 99d9356500306fabbb2855d0e6a1934e6eed4692 SHA-256: f80f73daac97e956efb0b5a54aadac59e1e3389972023c4a6f449d33d696bb38
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses an invoice-themed lure. 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 0.9942

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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 https://netcdn.xyz/app/479516143/wurst-mc-game-hack PDF link annotation
    • http://www.ladillo.com/images/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://www.ladillo.com/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/coin-master-free-spins-link-download-today_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://www.ladillo.com/images/rbx-website_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/coin-master-hack-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://www.ladillo.com/images/robux-miner_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.ladillo.com/images/free-roblox-website_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000045ad.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45AD 24632 bytes
SHA-256: f29dc844d34ae1d948776bd188f913e0e16c5a0da321cfb29d1c101698333b07
font_01_sfnt_off00007de7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE7 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off000087f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F7 17556 bytes
SHA-256: 42208ca16144cf3638b4e14489635fc98426cb09ec794bff84aa9a2d6a3db890

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