Malicious PDF — malware analysis report

Static analysis result for SHA-256 be572b172d5d800a…

MALICIOUS

PDF

35.0 KB Created: 2021-06-25 21:42:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: d91710fc299d7575f46ac9ceb6973f10 SHA-1: 7cbf7161907e3a28bb705888210d71290ddb9b93 SHA-256: be572b172d5d800a3915ca20db9c4d2209c37117ec88b3b2b15e5bccd96c4bc1
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs that are designed to lure users into clicking on links related to game hacks and free in-game currency. The primary URL, http://netcdn.co/app/431946152/hack-velocidad-del-juego-x3-roblox-game-hack, is flagged as a game hack redirector. This suggests the document's purpose is to trick users into visiting malicious sites that likely host malware or phishing content, aligning with a spearphishing attachment attack pattern.

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.co/app/431946152/hack-velocidad-del-juego-x3-roblox-game-hack PDF link annotation
    • http://perpus.i2s-learning.com//repository/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/medieval-hood-of-mystery-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-admin-hack-no-virus_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/robux-free-online_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-game_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/get-free-robux-if-you-finsh-ths-obby_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-admin-hack-client_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_off00002fa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA9 22576 bytes
SHA-256: 4923e3a22276ab66c2cf40adc710d758092cf35952d767689a4e65678ba2334d
font_01_sfnt_off00006197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6197 19732 bytes
SHA-256: a3c5d570916d3b359deec979d20ab1a1242a529d48d8e976bfbfdb26076c5781

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