Malicious PDF — malware analysis report

Static analysis result for SHA-256 448ee26e8b3dce34…

MALICIOUS

PDF

33.6 KB Created: 2021-07-03 19:26:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 075a90808bf60acc6ca44c050b3ab927 SHA-1: af5d88ca7fb939f53be89c628f0b7d5d03d6e523 SHA-256: 448ee26e8b3dce34c842a337178f57e7422509e9e007829504efb5d50e587405
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/406889139/facebook-coin-master-hack-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/robux-come_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-daily-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/i-need-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-free-download-ios_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-roblox-on-chromebook_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/robux-page_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
stream_002_off00002f47.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F47 22260 bytes
SHA-256: b6a7b8ffdb4b21bfa387bb620e6f40e09eb16f745ddd88812c4d6ec3c05a426a
font_01_sfnt_off00006094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6094 18324 bytes
SHA-256: de5d333ca2731b98d79dd38dcb89bccbbd759d9f6fb5713cf55863557c0b9bf7

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