Malicious PDF — malware analysis report

Static analysis result for SHA-256 3473b658a52238da…

MALICIOUS

PDF

35.6 KB Created: 2021-05-23 15:06:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e2d8a8a30a47f7797a327a45ae2ed3a8 SHA-1: 1c4934e5754b0fed170db865ec3b8b845fca2176 SHA-256: 3473b658a52238da812455567e18e128f9f789d5a949065dbd8b94f22a539151
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 0.9508

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.xyz/app/479516143/minecraft-java-edition-download-free-game-hack PDF link annotation
    • http://www.aldopesetti.com/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://www.aldopesetti.com/images/pubg-uc-2-all-pro_GM1330123889.pdfIn PDF document text
    • http://www.aldopesetti.com/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.aldopesetti.com/images/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://www.aldopesetti.com/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000304c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x304C 24972 bytes
SHA-256: 1abdb9e77ce0a08803cc5398d9c0e2478480ce3d166ec16dd48166b12238f92f
font_01_sfnt_off000068bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68BB 18572 bytes
SHA-256: b44bcce2d8515c0d099a66814c088ed689798a3dbc3c1364cf14b7c888151b67

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