Malicious PDF — malware analysis report

Static analysis result for SHA-256 c95ad1edec044912…

MALICIOUS

PDF

43.6 KB Created: 2021-05-10 15:27:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 16f82eb3d1695833c9ac64c74e2444a3 SHA-1: 10fd016306d88701817fb60ca9d605306ab0be13 SHA-256: c95ad1edec044912f2718a944297602c21e007a739ef2784ad2178443b68cc42
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 0.9870

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/406889139/60-free-spins-on-coin-master-game-hack PDF link annotation
    • http://bressanassessoria.com.br/images/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/roblox-generator_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-apk-hack-32_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/google-moon-active_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-robux-no-human-verification-or-survey-2021_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000417a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x417A 25560 bytes
SHA-256: d2f352e49f06545d63b7e1888c7a85ea99e4ae98fe33435d0f3fec549a9b13c7
font_01_sfnt_off00007cbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBC 3380 bytes
SHA-256: 1dd933c112880b232546f3aab6a17784a8f412d39fd551cc6eb31c5a04c3ce57
font_02_sfnt_off000088a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88A5 18224 bytes
SHA-256: fb8ca16964c1cfb5d3ac46424d3104c0504772e256342925334c3af996e4fdd1

Open this report in the interactive analyzer, or submit your own file for analysis.