Malicious PDF — malware analysis report

Static analysis result for SHA-256 d16a55f61b2b9c34…

MALICIOUS

PDF

34.9 KB Created: 2021-06-17 16:30:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: da7b4fe4ca007f9eafc9d221c5592469 SHA-1: d07daf01ad358fb0517d43a8737423b153cefd00 SHA-256: d16a55f61b2b9c34cc41f75e89db66c8ac3f4b21a02690e905318c249d26cd2a
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/how-to-enter-paid-games-for-free-roblox-game-hack PDF link annotation
    • http://sttlets.education/senayan/repository/how-to-hack-on-roblox-wolf-games_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/get-gold-coin-master-village-hack_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/minecraft-for-laptop-free_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-jackpot-hack_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-buy-pubg-uc-in-india_GM1330123889.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/pokemon-go-free-999_GM1094591345.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-event-hack_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/pokemon-go-free-hack-download_GM1094591345.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-printable-roblox-coloring-pages_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_off00002f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F99 22524 bytes
SHA-256: d6d7f08d0c05a270b988f6a186bf9de5a76e6a8f2496d053e53465b5905f17eb
font_01_sfnt_off000061cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CD 19628 bytes
SHA-256: 3e5146c2619db37ab0f0229248404e425077a420e02d82d65a5ca12bb192614d

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