Malicious PDF — malware analysis report

Static analysis result for SHA-256 64ae32c8c61e0807…

MALICIOUS

PDF

40.9 KB Created: 2021-05-11 14:00:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 5db8936f63ab65dfffe2cf214e518fee SHA-1: ef83148165756193856e1761849a01316530f767 SHA-256: 64ae32c8c61e0807ff9a64f70079c773dda3055246358fba224bab645d0a28d4
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lure users with promises of game hacks and free currency for popular games like Roblox and Minecraft. The ML classifier strongly flagged this PDF as malicious, and the presence of these lures indicates a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially malicious sites that may host further exploits or malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/roblox-mobile-hack-game-hack PDF link annotation
    • http://pspmrsmbpj.com/opac/repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/minecraft-menu_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/easy-robux-today_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/roblox-free-play-no-download_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/coin-master-free-spins-link-31-march-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-to-get-free-roblox-money_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_off000046d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46D9 24328 bytes
SHA-256: 57e2e23d54665f0ba87e7f792d2aeb9384488e7d1310cef9e5a046d6c5dce951
font_01_sfnt_off00007cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CDA 18500 bytes
SHA-256: e5e44b7d88d65c0aa39187413bdce35fa7eb26b841b7c8af9c826d312b99eefc

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