Malicious PDF — malware analysis report

Static analysis result for SHA-256 11d1fd5759c66b99…

MALICIOUS

PDF

32.7 KB Created: 2021-07-24 12:10:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9205ef29cdace99fa14806b9ce5501ad SHA-1: db75ab8fe481b62103995b60ce4f7a11731bf464 SHA-256: 11d1fd5759c66b9946db6ba0f5d0db8af1988877ac86adcde458976f0975acca
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 0.9900

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/431946152/free-robux-no-scam-game-hack PDF link annotation
    • http://genialica.de/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://genialica.de/images/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://genialica.de/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://genialica.de/images/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://genialica.de/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://genialica.de/images/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://genialica.de/images/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://genialica.de/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://genialica.de/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://genialica.de/images/free-minecraft-codes_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
font_00_sfnt_off00002bb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB1 22104 bytes
SHA-256: b7bdd91cfc0ab6f3642ef1be92596e9cde7554501888b9ef14e2d6c35f4e0bb1
font_01_sfnt_off00005cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC4 18688 bytes
SHA-256: a5f3b27a2052da5913dd8bc4cd538afdc8423fc5123f9042e9a65747a26e72e1

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