Malicious PDF — malware analysis report

Static analysis result for SHA-256 f471f40e0282d59f…

MALICIOUS

PDF

35.4 KB Created: 2021-05-23 21:18:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5bb4c65b47be888ebd2138de9f5680c7 SHA-1: 3ab26c2885a41ec7c489ff659f55532548e4ba49 SHA-256: f471f40e0282d59f6b2c1d3b8ffaeee9d8ca9bc3b8cbe17a0950fe4faf57fa96
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 0.9648

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/431946152/how-to-hack-roblox-game-hack PDF link annotation
    • http://bgnails.nl/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://bgnails.nl/images/how-much-is-uc-pubg_GM1330123889.pdfIn PDF document text
    • http://bgnails.nl/images/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://bgnails.nl/images/free-download-coin-master_GM406889139.pdfIn PDF document text
    • http://bgnails.nl/images/coin-master-hacks-2021_GM406889139.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
font_00_sfnt_off00002fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD1 25532 bytes
SHA-256: 09d4484861b3fcb5e8b586027f7f42d0c67c4d48364f23b86e718cffbe4fd34b
font_01_sfnt_off0000685c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x685C 18344 bytes
SHA-256: 73440050ee62d9c8dc97d7cf0d13859b5ca63a66159f36279ab18a86d0bf293f

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