Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a0d1f5642c20144…

MALICIOUS

PDF

40.6 KB Created: 2021-05-16 04:15:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9bf1686177d76602530a7502026ade55 SHA-1: f1a4a23c652440938683e38b35c59a9658ed8f60 SHA-256: 1a0d1f5642c201447609145180dc00a69ae28b59f8c0d9d31c59c4fbf7fb43b1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, with a primary focus on game hacking lures such as 'Coin Master Hack'. The document body and heuristics indicate a social engineering tactic to trick users into visiting these malicious URLs, likely leading to further malware downloads or phishing attempts. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/coin-master-hack-here-game-hack PDF link annotation
    • http://sbm-nn.ru/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-please_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/hack-coin-master-nyc_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master--hack_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-daily-free-coins-link-today_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
stream_003_off00004742.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4742 24072 bytes
SHA-256: 42594b49820492a7a5a2bfd34304b1c4f0bf9ce23778d0b1f177cee250bca0ac
font_01_sfnt_off00007df9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF9 17716 bytes
SHA-256: c15a8689411d8cca9ab0759ab4c496fe9b4353d676dd738e300719e9588112ed

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