Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac295b442914fd2f…

MALICIOUS

PDF

42.7 KB Created: 2021-05-11 00:31:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8afedd25833336f2e9afb8816e0dea30 SHA-1: 1fea430c755957ba63266b381aa9a92c9ee487ff SHA-256: ac295b442914fd2fd7dfbb1e6960fc8db464fbbdbed5bf08997ca8cf7c5ba178
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and references to game hacks and free currency generators, indicating a phishing or scam attempt. The primary lure is to trick users into visiting malicious URLs, likely to download further malware or lead them to scam pages. No scripts were extracted, but the embedded URLs are the main 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/431946152/offers-for-robux-game-hack PDF link annotation
    • http://cristalysoptic.com/images/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://cristalysoptic.com/images/roblox-redeem-robux_GM431946152.pdfIn PDF document text
    • http://cristalysoptic.com/images/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • http://cristalysoptic.com/images/earn-roblox_GM431946152.pdfIn PDF document text
    • http://cristalysoptic.com/images/coin-master-unlimited-spin-apk-free-download_GM406889139.pdfIn PDF document text
    • http://cristalysoptic.com/images/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://cristalysoptic.com/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://cristalysoptic.com/images/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://cristalysoptic.com/images/robux-scam_GM431946152.pdfIn PDF document text
    • http://cristalysoptic.com/images/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://cristalysoptic.com/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://cristalysoptic.com/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • http://cristalysoptic.com/images/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • http://cristalysoptic.com/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://cristalysoptic.com/images/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://cristalysoptic.com/images/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://cristalysoptic.com/images/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • http://cristalysoptic.com/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://cristalysoptic.com/images/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://cristalysoptic.com/images/roblox-free-exploits_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_off00004768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4768 27060 bytes
SHA-256: 60acd2134dfb5ca3ba6f52b94456621979118cdd525eb3661f67c610b79806d8
font_01_sfnt_off00008559.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8559 18012 bytes
SHA-256: 008daa7c923f0d18fdb9c83010d9a64072a053927c268ad9f22a1822577e7237

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