Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f28b219fd5a4389…

MALICIOUS

PDF

33.3 KB Created: 2021-07-06 06:14:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c98cafc5284167293b3319acd0f19776 SHA-1: 13a055e2ab3c06f89c7f13fd38547127456362e1 SHA-256: 2f28b219fd5a43898a827abe3f916b7359a5d2fb0349a1b0c71f232cd93f46f7
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.tw/app/406889139/coin-master-cards-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id//repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-piano-keyboard-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-not-get-your-roblox-account-hacked_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/master-coin-hack-app_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/cheat-roblox-pass-thought-the-wall_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-to-use-roblox-ads_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-free-robux-sound_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spin-card-exchange-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-apocalypse-rising-hack_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_off00002f2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2D 22068 bytes
SHA-256: b700fd53d2e8389cae8c8955ea110d11734835b2d50f415e70a2488cdcb72b2b
font_01_sfnt_off00005fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDF 18008 bytes
SHA-256: 9b1b8022fecd0e698345aa4518e5e5ceb9dfed4ff19bb9e19d156964a7983e20