Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6e3a30fb14c2f0b…

MALICIOUS

PDF

44.4 KB Created: 2021-05-16 19:46:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 285cf414a80b511a9b0aec6e0775f784 SHA-1: 5a0e3cffdf680011012c7791693c7a9c9b9977bf SHA-256: d6e3a30fb14c2f0bd1724bee80671a8e1974c0f14b4be2f53c79d8df4b347958
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 0.9980

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/wahoogaming-co-free-robux-game-hack PDF link annotation
    • http://olesya-chagovets.com/images/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://olesya-chagovets.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/daily-coin-master_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/how-to-get-free-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/robux-only_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • http://olesya-chagovets.com/images/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://olesya-chagovets.com/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://olesya-chagovets.com/images/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://olesya-chagovets.com/images/free-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://collectrobux.coIn 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_off00004b74.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B74 26212 bytes
SHA-256: 9714eef89a130b77fc4b7aa637d512be7b0c192f73b4b6f13f2eac7549948f9c
font_01_sfnt_off00008875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8875 19272 bytes
SHA-256: 78de909b7ffb92602eadaeed37aeb712efe7a44911c114e8956161378fc8ed7d

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