Malicious PDF — malware analysis report

Static analysis result for SHA-256 556d936ca78afe6a…

MALICIOUS

PDF

39.9 KB Created: 2021-04-30 05:16:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 61f2a13b902106dc7391bb165533eb90 SHA-1: f6f3b2d419edcfd04dd4ee57aa6bdd378e770afc SHA-256: 556d936ca78afe6a005e7f559d9beace9001991360f6b7f0ce018ec30b170bcf
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 0.9934

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/descargar-roblox-hackeado-con-robux-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/www-mistplay-com-free-robux.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-free-robux-tampermonkey.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/tycoon-money-hack-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-giveaway-live-stream.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/play-free-online-games-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hack-para-roblox-robux-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/what-is-the-speed-hack-code-on-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-generator-2021-no-human-verification.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/best-roblox-hacks-gui.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hack-roblox-with-kali-linux.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_003_off00003ee6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3EE6 24832 bytes
SHA-256: 7df8273caa912ea75a057b4280c49e0c3ae78479cabde7cb9274f24c0cff0a87
font_01_sfnt_off000077d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D8 18952 bytes
SHA-256: b3e34f483292023cadd65d659e681788dc8d5a1d87a11032026cd2627cfe70f7

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