Malicious PDF — malware analysis report

Static analysis result for SHA-256 d785acb874515d49…

MALICIOUS

PDF

43.0 KB Created: 2021-05-14 06:25:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: e3399573c5fe57ff5adc128e08c53163 SHA-1: 366486802330f4124ae202227b5389b1d826b525 SHA-256: d785acb874515d49f9aa7d8f12bab985249161fb616ad62f362081f32e828b96
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, including one that masquerades as a 'free generator / game hack' for Minecraft. The document body, though partially corrupted, contains text related to game hacks and includes the primary malicious URL. The presence of multiple redirector links and the lure content strongly suggest a phishing or scam attempt designed to lead users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/479516143/can-you-still-get-minecraft-windows-10-for-free-game-hack In PDF document text
    • http://webstan.be/images/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://webstan.be/images/grab-points-login_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://webstan.be/images/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/free-robux-real_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/hack-coin-master-xyz_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/free-roblox-acc_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/spins-coin-master_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/how-many-free-spin-links-is-there-for-coin-master_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://webstan.be/images/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/114-hacks_GM479516143.pdfIn PDF document text
    • http://webstan.be/images/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://webstan.be/images/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://webstan.be/images/minecraft-hack-client-download_GM479516143.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_off00004a76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A76 25572 bytes
SHA-256: 341d8167b63f659c338c7222fefec1a33e65a288d99a358b9f59f8aeb681f4d7
font_01_sfnt_off000083ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83AE 18900 bytes
SHA-256: 034db505498ac8c8519d8237c8b18b5343e7da842d12f3a540d738a1fb4a7f0f

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