Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d5251734b57123e…

MALICIOUS

PDF

44.2 KB Created: 2021-06-07 17:30:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a9267e25a184a02186a1de0f3960e5ac SHA-1: 8ad5222ac8efc6fae08166cf7a6c6392279cc396 SHA-256: 4d5251734b57123e4a3b4cdc5c81d7424e85b7cfcb5fa2c26c98087b1dbb3451
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game hacks, directing users to a malicious URL. The document body and embedded links strongly suggest a social engineering tactic to trick users into visiting a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and embedded URIs indicate a malicious intent to redirect users to external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/free-roblox-hack-game-hack PDF link annotation
    • http://www.thecoffeebaron.co.za/images/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-roblox-intros_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-on-facebook_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/greenville-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-come_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
font_00_sfnt_off00005026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5026 25188 bytes
SHA-256: b55afe39202c274556fd859beaf286605ac24aed91d3d36c9f70761f29f7ceb0
font_01_sfnt_off000089d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89D0 18344 bytes
SHA-256: 9d921b2eee93f33e2efc5c53c848117e08d630d06cf868d7193b51dd4894dd93

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