Malicious PDF — malware analysis report

Static analysis result for SHA-256 798dbea2428557d5…

MALICIOUS

PDF

31.2 KB Created: 2021-07-19 15:33:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 94e43416f77a75f9256e40c64bfe7c61 SHA-1: 731fc3bb5b0e46009348ee4f39e6217d341b596f SHA-256: 798dbea2428557d5f4f4a522ae9eda250269c902d2fd1c68e94d8221eea2b0ee
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link to a "free generator" or "game hack" website, indicating a lure for users interested in such content. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent, likely to redirect users to a site that downloads malware or conducts phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9893

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 http://netcdn.tw/app/479516143/free-minecraft-pe-server-game-hack PDF link annotation
    • http://itc-nekretnine.hr/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-tiktok-hearts_GM835599320.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://www.itc-nekretnine.hr/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://itc-nekretnine.hr/files/coin-master-free-spin-and-coin-links_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_off00002959.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2959 21780 bytes
SHA-256: f1ad49bf2aaa90a0f9621da33280e5e41b0ba497e8f4bec73a6abe11219f4ca8
font_01_sfnt_off00005932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5932 17836 bytes
SHA-256: 40ba9e4e6a96b9fbdb66fe1c3cdc29181d81f4b56a4eeac74a5dcf6bc0460396

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