Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fe68d1fa693dbba…

MALICIOUS

PDF

33.4 KB Created: 2021-06-21 18:40:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 66776bd3fdeab7270fb27c4d87f0a083 SHA-1: 94d273f74e5ad252bb4a4e75d6ac1bd0acaf8b5d SHA-256: 9fe68d1fa693dbba95c1c7ea8c0ae0db06ffe8777794f9d101d3f6dc58d9353a
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 0.9824

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.co/app/431946152/how-to-hack-roblox-lumber-tycoon-2-new-hack-2021-game-hack PDF link annotation
    • http://ansacare.com/images/how-to-hack-roblox-hospital-roleplay_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-do-i-get-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/roblox-piano-keyboard-cheat_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-free-items-from-games-roblox_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://ansacare.com/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/unlimited-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
    • http://ansacare.com/images/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/coin-master-free-spins-facebook_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_off00002a38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A38 22292 bytes
SHA-256: 60c87e6a714abc95377d7cc36c186aa6adb4f3d62c1622c9149faee8b2b711c2
font_01_sfnt_off00005b8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B8E 19800 bytes
SHA-256: 630d4270d25177d2b9d2e0e09204a302da71e43314f41145b4e0727eddb4e329

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