Malicious PDF — malware analysis report

Static analysis result for SHA-256 4118baf1ba951023…

MALICIOUS

PDF

34.1 KB Created: 2021-06-17 21:32:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5ff950c76c011d13b3cb7149360dac91 SHA-1: 5287ead78c6c4a8ad433d3269a3e03753b5ebdb3 SHA-256: 4118baf1ba951023040372b1f445ca0ba1cc4425039e97b8ad24f35740df8db4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free Robux codes' and game hacks, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics indicate it's a redirector for game hack generators. While no scripts were explicitly extracted, the nature of the lure and the embedded URLs suggest an attempt to lead the user to a site that may host further malicious content or exploit kits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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-get-robux-codes-for-free-game-hack PDF link annotation
    • http://boliviagasenergia.com/images/free-black-suit-roblox_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://boliviagasenergia.com/images/pubg-770-uc-hack_GM1330123889.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/114-hacks_GM479516143.pdfIn PDF document text
    • http://boliviagasenergia.com/images/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/free-400-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://boliviagasenergia.com/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/how-to-get-free-admin-in-roblox_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://boliviagasenergia.com/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://boliviagasenergia.com/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://boliviagasenergia.com/images/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000302f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x302F 21788 bytes
SHA-256: c62dc125e5f4b94036d77cd2561051bae34b132a0bc8601c712666d697050e3d
font_01_sfnt_off0000601d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601D 18972 bytes
SHA-256: fda05aa4735b41f51720f373cc442e12374c08062e36b06223ec533bbbf69eaf

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