Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6271d7c5e58fc56…

MALICIOUS

PDF

40.9 KB Created: 2021-05-19 18:07:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ab9fdb7d49d6e9ed7651141a1f4a54a5 SHA-1: b858775837226f439f395858291de44fa8b2218c SHA-256: d6271d7c5e58fc56fa584544456b49afd5365330f06f00fb5a960d46f9c38eb6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic firing for a game hack lure, directing users to a suspicious URL. The embedded link and numerous other URLs found in the document all point to domains associated with game cheats and generators, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure itself contains links that are likely intended to redirect users to malicious content.

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-twitter-game-hack PDF link annotation
    • http://dcmetroapp.com/images/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://dcmetroapp.com/images/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://dcmetroapp.com/images/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • http://dcmetroapp.com/images/minecraft-for-laptop-free_GM479516143.pdfIn PDF document text
    • http://dcmetroapp.com/images/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://dcmetroapp.com/images/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • http://dcmetroapp.com/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/coin-master-hack-apk-with-fb-login_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://dcmetroapp.com/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://dcmetroapp.com/images/roblox-hackers-list_GM431946152.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_off000046b0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46B0 24540 bytes
SHA-256: 891cec56220c671eaa4f616ca6818a8aa112ffe3f02c823b6e96dabaa519aa9b
font_01_sfnt_off00007eca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ECA 17712 bytes
SHA-256: 338c422cc4b1338db2b603d539e5d6b05580e47693df7a8745f822589ab7623f

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