Malicious PDF — malware analysis report

Static analysis result for SHA-256 6152735e54d95dbf…

MALICIOUS

PDF

35.5 KB Created: 2021-06-27 00:07:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 3a79d9189cff5c43fdfcec56a014141f SHA-1: e322f13e0011b27e13506333ec1935461426dde3 SHA-256: 6152735e54d95dbfaac191c1d19687dfe299fefdf1dcce36abef091015e02e14
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 0.9980

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/free-item-with-card-purchase-roblox-game-hack PDF link annotation
    • http://perpus.i2s-learning.com/repository/free-uncopylocked-roblox-games_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/this-app-gives-you-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/como-hackear-roblox-con-lucky-patcher_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/did-roblox-get-hacked-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/godmode-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-scripter-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/console-free-admin-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/swat-for-free-on-jail-break-roblox_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_off000031d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D8 22312 bytes
SHA-256: f3f2170ca8b4ff94326e6427fd678bd05e97ab72431210cf8c0490e5437c685f
font_01_sfnt_off00006367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6367 19968 bytes
SHA-256: 33fb15a70f64be8bda4e9ac8226c0f7e700c69f1a296d504eda6b88f025eeddc

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