Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5b7fd264a1b5ef0…

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 08:32:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 159ff9fa45715db5150d90a31b665f9d SHA-1: 26dffa04faa4b414822fc386aad44ed8684fbfb4 SHA-256: d5b7fd264a1b5ef068b8c506aaa9b17111a0672f2a409fb2be8592ec3832b913
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free spins, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a phishing or redirection attempt to a site likely hosting further malicious content or exploits.

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/free-spins-coin-master-blogspot-game-hack PDF link annotation
    • http://lib.teknik.unimal.ac.id/repository/how-to-get-free-cards-sets-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-explorer-hack_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/how-do-you-get-free-clothes-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/rbxboost-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-cutie-mark-free_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/cheat-code-roblox-pc_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/cheat-roblox-pour-passer-des-niveaux-sur-mega-fun-obby_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/tiktok-free-movies-site_GM835599320.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-model-3d-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/hack-para-sharkbite-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-vpns-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/unlimited-robux-hack-download_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-speed-hack-2021-april_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
stream_002_off000032fc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32FC 22628 bytes
SHA-256: a578a0d351622fca0bc6cb08b121dbe9b0ae8d8e68456a6a107526e4f5285b1c
font_01_sfnt_off000065b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B6 18464 bytes
SHA-256: cbb231600960fb01f8bf75e8d05c0400c1d923e50dae77b7055f9c2ab978b14e

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