Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3c23262d25288fb…

MALICIOUS

PDF

36.8 KB Created: 2021-05-23 01:05:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 054e1d615a82118efffce1a2e7945b39 SHA-1: 562b6a515b0299fbd3b3e104fd4d12117d8b08a3 SHA-256: d3c23262d25288fbeeca94a5819d5c89362c5335a88bb6ac57263da9591c81fb
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 0.9447

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-online-free-download-game-hack PDF link annotation
    • http://pietroubaldi.org.br/images/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • http://pietroubaldi.org.br/images/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://pietroubaldi.org.br/images/free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://pietroubaldi.org.br/images/minecraft-free-version-pc_GM479516143.pdfIn PDF document text
    • http://pietroubaldi.org.br/images/roblox-free-robux-com_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_off000034aa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34AA 25640 bytes
SHA-256: c66f22550689ae3c54e9cb6980fe94f19e3edc2c695a7e8d55201c510dcb7194
font_01_sfnt_off00006e84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E84 18292 bytes
SHA-256: a2a63f8c18687518d260bdaa10b8e62a526b9456f69b3d2706eff3b892369b89

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