Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b66f99f6afe279b…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 12:05:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 983145b538a0b7089e3c1719b9f1e543 SHA-1: 1dc7b3e46dc32a18574faa4754c255d133e1c087 SHA-256: 1b66f99f6afe279b4fa52b16ebde351d780acdeeebb80151b95a94285535a763
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure related to 'Free Robux Games' and a call-to-action button, directing users to a suspicious URL. This indicates a phishing or scam attempt designed to trick users into visiting a potentially malicious site. No scripts were extracted, limiting further analysis of the payload.

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.tw/app/431946152/free-robux-games-game-hack PDF link annotation
    • https://akbidprimahusada.ac.id/elibrary/repository/how-to-use-cheat-engine-undetected-on-roblox_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/black-magic-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/roblox-free-roam-games-grand-bloxs_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/roblox-18_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/roblox-hack-with-cheat-manager_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/pokmon-go-free-download-apk_GM1094591345.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/comment-hacker-vehicule-simulator-sur-roblox-2021_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/robux-come_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/roblox-lawsuit_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/free-credit-cards-for-robux_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/g00d-hack-roblox_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/how-to-hack-pubg-mobile-unlimited-uc-without-human-verification_GM1330123889.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/robux-rewards_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/robux-generator-without-verification_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_off00002e0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E0C 22608 bytes
SHA-256: cc6a34d2e98ccb1186814c4f80c428be86938510910a2a0ae3b9d669cec42b7b
font_01_sfnt_off000060ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60AD 18976 bytes
SHA-256: 9cf25d4eac3a634b4e62a67958c7d0e686964c27f7673d9c7386bb6e1f5e78e0

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