Malicious PDF — malware analysis report

Static analysis result for SHA-256 1de855b9382bd468…

MALICIOUS

PDF

43.0 KB Created: 2021-05-19 02:07:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5d179bd3bd8c819de1f4e6b29e148488 SHA-1: 920d63bdce94c4f155941aaad348b334c113ff7a SHA-256: 1de855b9382bd468800138f330b3c6e4a14b96bcc787136d40932190afcefeea
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a high-confidence heuristic indicating it links to a game hack lure, specifically for Coin Master. The embedded URL, https://netcdn.xyz/app/406889139/coin-master-free-gold-cards-link-game-hack, is likely the initial landing page for a phishing or malware distribution scheme. The document's purpose is to trick users into clicking this link by promising free in-game currency or cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/coin-master-free-gold-cards-link-game-hack PDF link annotation
    • https://www.sonestad.se/library/repository/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/minecraft-free-education_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-cheat-codes_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coinmasterfree_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coinmaster_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/robux-generator-that-works_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-free-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-coin-master-card-free_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-exe_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/get-coin-master-cards-free_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-game-free-download_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-coins-and-spins-coin-master-2021_GM406889139.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_003_off00004b97.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B97 25400 bytes
SHA-256: c39c5ed095704cb5d7fdf476756b66830455bda1c326222902bc7d6ae4f08f6a
font_01_sfnt_off00008652.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8652 18128 bytes
SHA-256: 70aaa51de045f356af96609cbefa464fa4c02188ab9d169d531121296ec6db77

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