Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9ea253c6d0f115b…

MALICIOUS

PDF

43.6 KB Created: 2021-05-17 11:34:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: b7607929324d3a98dc7664299717e8da SHA-1: 472113908b5ba2bffddac81a162722da7c476284 SHA-256: f9ea253c6d0f115b4a7a95156ddf5a4e1576ef6fb1ddcc3ac695e5f6683c41e8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to websites offering game hacks and free currency, a common lure for phishing and malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and the presence of numerous related URLs strongly indicate a malicious intent to redirect users to potentially harmful sites. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to facilitate initial access via spearphishing, leading users to download or interact with malicious content.

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-book-collection-game-hack PDF link annotation
    • http://www.studiodamato.it/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/robux-link_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/minecraft-client-download_GM479516143.pdfIn PDF document text
    • http://www.studiodamato.it/images/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://www.studiodamato.it/images/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.studiodamato.it/images/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • http://www.studiodamato.it/images/minecraft-noob-vs-pro-vs-hacker_GM479516143.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_off00004a0f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A0F 28656 bytes
SHA-256: 0222f899652fef35a099770667f74a51bb5bbaea809f36fd47229ba79731a4cb
font_01_sfnt_off000088dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88DD 18168 bytes
SHA-256: 399702d0ee70d7721e3b7d87823dce0b35203047caa5258f7323b07e9fdc19b4

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