Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d06d057dfde1eb7…

MALICIOUS

PDF

32.8 KB Created: 2021-06-18 06:12:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3ec44b15d65e22d17c451a30515f2a14 SHA-1: a9a3e701a19b8f01ba3672ee8fe8aff6b98641ed SHA-256: 4d06d057dfde1eb7c3fb31a2bc9e1117ae1694d39a0e9ada6bdba9f038a99dfe
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 0.9824

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/free-robux-do-deals-game-hack PDF link annotation
    • http://library.futureuniversity.com/repository/roblox-its-free_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/hack-download_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-roblox-group-giving-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/real-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-how-to-get-free-robux-no-hacks-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-coin-master-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/robux-today_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-followers-roblox-2021-april_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-links-coin-master_GM406889139.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_off00002b6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6E 21872 bytes
SHA-256: 3dcc09e5912d4d3848f9bd84175ce1f4acffc89646a325ea9eb18fac06229ddb
font_01_sfnt_off00005bb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB9 18960 bytes
SHA-256: c38e990098923383770f2f492d0ea27628a9e3861beb205525bb776250e7a433

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