Malicious PDF — malware analysis report

Static analysis result for SHA-256 e78c0eb63f2cd4b2…

MALICIOUS

PDF

35.9 KB Created: 2021-06-28 05:29:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 80b982b66dc8e85467c3fabb786bcf72 SHA-1: b0ed240634241e693ae5687be5bc05760707a8e2 SHA-256: e78c0eb63f2cd4b2364d6843aa30effe48100c502d1d3d1ac8a67ec27de679ac
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 0.9980

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-free-robux-november-2021-game-hack PDF link annotation
    • http://www.stttekstil.ac.id/elib/repository/how-people-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/100-robux_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-robux-hack-on-pc-2021_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/coin-master-free-spins-ios-app_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-skin-bundles-roblox_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/the-easier-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.stttekstil.ac.id/elib/repository/roblox-hack-app_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_off00003244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3244 22652 bytes
SHA-256: 8731492052eca846e0d67d6e954c343029eaa7fcdc8fb98d5b0eda3eb3d845a4
font_01_sfnt_off000064ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64EE 19760 bytes
SHA-256: 0c51c6aa03b7e7febfd109d1b03b6c1e3238ba8e47eebb729a27a19dabcfa5a7

Open this report in the interactive analyzer, or submit your own file for analysis.