Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f74a6786984c224…

MALICIOUS

PDF

46.5 KB Created: 2021-06-03 07:20:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7de424aa76fc0e7f13f2b458b5c00a77 SHA-1: d2ab572ff366d49639406cf7875bbc93781d7c7b SHA-256: 7f74a6786984c2244d97fdcc23813d0410572c047e27d25b68447bd1ccb20721
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 0.9748

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 https://netcdn.online/app/406889139/coin-master-hack-tool-v1-9-download-game-hack PDF link annotation
    • http://elibrary.perludem.org//repository/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-face-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coin-master-hack-cheat-generator-d_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-tiktok-accounts_GM835599320.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/get-gold-coin-master-village-hack_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-realistic-minecraft-texture-packs_GM479516143.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004e96.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E96 24792 bytes
SHA-256: 4ba8719e0835323326fd7dee0cc084978599b3f74fbf3d1eb2e235f9d82be7c5
font_01_sfnt_off00008772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8772 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off0000915d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x915D 18700 bytes
SHA-256: 9cf5927f48de073d536566d00352c45da2cff51891e4c509e4c52fd42c0e4c7a

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