Malicious PDF — malware analysis report

Static analysis result for SHA-256 64829ca59bb52181…

MALICIOUS

PDF

34.9 KB Created: 2021-06-17 16:47:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: be67470c47e857625330f6eb3be44f8c SHA-1: 34dcb4933132eff358c03009060c79080c3d2db5 SHA-256: 64829ca59bb52181e0490ad65b9d7f5f90a1a682c537d5aaa44401c0aaa0a82a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary link pointing to a 'free Roblox hack' lure. This suggests the document is designed to trick users into visiting a potentially malicious website or downloading further malware. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing or social engineering attack.

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-roblox-mad-city-vip-server-game-hack PDF link annotation
    • http://pustaka.ffarmasi.unand.ac.id/repository/how-to-make-items-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/roblox-account-pin-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-robux-credit-card-number_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/how-to-hack-into-somebodys-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/how-to-hack-clothes-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/roblox-anniversary-free-card_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-vip-server-boku-no-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/how-to-make-free-models-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/granny-all-badges-hack-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_off00002f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F99 22348 bytes
SHA-256: e96448be39b1119914d42158ef9cf24abf3e9ae9af9d2eca80fdba9b57d8ef75
font_01_sfnt_off0000617f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617F 19660 bytes
SHA-256: 568aa7f909b7d4490891c2ce1668f842cb70f99e6e138678a63f6e4252675f75

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