Malicious PDF — malware analysis report

Static analysis result for SHA-256 8436f1a2ed415a45…

MALICIOUS

PDF

43.5 KB Created: 2021-05-15 03:17:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: de9614f9175fededbe7a95a22b0834cf SHA-1: c6b9de5e25b3d774fe0037831f30ec8b5db10402 SHA-256: 8436f1a2ed415a45531a124f6791c2191d8e98724e1af48b02b20058258c7be0
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 0.9969

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.xyz/app/479516143/minecraft-tower-defense-hacked-game-hack PDF link annotation
    • http://interpretation-dessins-enfants.net/images/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/coin-master-daily-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/hack-robux_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_off00004f52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F52 24920 bytes
SHA-256: 11ad51a69a10ae5876e1e7c07b65ef27efc609c27804c2d2ef0005ef955f28a6
font_01_sfnt_off00008776.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8776 18388 bytes
SHA-256: 713945c209eafdfb17d9348275aac2514e7231b3ac112b5af91dabd48964bc5b

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