Malicious PDF — malware analysis report

Static analysis result for SHA-256 15efec7af1367ea7…

MALICIOUS

PDF

35.4 KB Created: 2021-07-05 05:26:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9b27e1ddca72e6df6509a3fa6bb9128c SHA-1: 052ba87d4fa91207631ca8d6e0fac94fbc8c7bb0 SHA-256: 15efec7af1367ea73026a2257ac9a4b1b1089cd163ac1c5548c5733fb769e18e
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-gold-cards-hack-english-game-hack PDF link annotation
    • http://elibrary.perludem.org/repository/roblox-i-dont-feel-so-good-simulator-hack_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/stickmasterluke-free-robux-game_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/hacker-face-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-offer-earning-sites_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-cookie-logger-for-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-roblox-gear_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-plsss_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-look-like-a-guest-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-get-roblox-dollars-for-free_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-speed-hack-on-roblox-with-cheat-engine-63_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-prison-life-hacks_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-synapse-roblox-exploit_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32F8 23548 bytes
SHA-256: c2d69e5b5024dfdd38e93fc2e4802154b0dd92c63db45b58cdd16ddf306e1f12
font_01_sfnt_off00006790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6790 18420 bytes
SHA-256: bcfbc398961ce42f67dbd834cd568fcc213bb04e65df66ca0e3cd9736ebb0a48

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