Malicious PDF — malware analysis report

Static analysis result for SHA-256 1216143f6e7e180c…

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 16:09:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: c7571e1c198762085eeb6dbc6cefde0a SHA-1: b500fef79d0fa238a248f88aab90bcf25bbc3dc3 SHA-256: 1216143f6e7e180cee1623fbeb87d59a328b338743415b4484fcab0b4a0c35c5
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/479516143/minecraft-free-ios-game-hack PDF link annotation
    • http://www.elibrary.perludem.org/repository/free-dominus-roblox-to-wear_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-catalog-robloxcom_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-hack-no-human-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/robux-hack-no-verification-humaine_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-cheats_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-stealer_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-cheat-money-download_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-get-free-bc-on-roblox-2021-no-hack_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/my-roblox-girlfriend-cheated-on-me_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-spin-hack-without-verification_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_off00003552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3552 22716 bytes
SHA-256: d11a05f9f9571d87426e545c41df67561a9cac19eedd6434ab1494f27de5da09
font_01_sfnt_off000067e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E6 17996 bytes
SHA-256: c69302d64d01fed68f7faa121aa3d2ae3c207c1a6baca3325fd70ae8fd84539d

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