Malicious PDF — malware analysis report

Static analysis result for SHA-256 245266d3b19b68b3…

MALICIOUS

PDF

43.8 KB Created: 2021-06-03 08:11:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 6156b06af2120d2b66a852c133a8b243 SHA-1: 7c96a938c99bcf9087bc10081ddeefa1a84ad859 SHA-256: 245266d3b19b68b305a317fb49495b54850a38c8440501b03d70894803472892
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 0.9865

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 https://netcdn.online/app/406889139/free-coins-on-coin-master-generator-game-hack PDF link annotation
    • http://library.patria-artha.ac.id/repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/tiktok-free-food-vending-machine_GM835599320.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/pubg-uc-kaise-kamaye_GM1330123889.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-android_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/clients-minecraft_GM479516143.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_004_off0000507d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x507D 25140 bytes
SHA-256: 1741fd523cc0003b29e5749af5b3cf6935b4aea4b8c7833a3c56617eff7c0df5
font_01_sfnt_off00008a5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A5A 17712 bytes
SHA-256: e8b1eba143f1d3c0478eece1d902ba9fd5ecbd562c4f2d9cad907c7e05d934a1

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