Malicious PDF — malware analysis report

Static analysis result for SHA-256 93f5c112604e4639…

MALICIOUS

PDF

35.2 KB Created: 2021-06-25 22:00:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: da103e0df04823530dd6f847d6abfa93 SHA-1: 2987992f95276eb411faf18e2537e38ab424906e SHA-256: 93f5c112604e463933c29e9a31855b648329385789bfe6c0919c4f35d8bfafc8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links and references to game hacks and free in-game currency, specifically targeting popular games like Roblox and Minecraft. The primary lure is to trick users into clicking these links, which are hosted on domains like netcdn.co and e-learning-mts-nurussaadah.com. These links likely lead to phishing pages or download sites for further malware. The ML classifier strongly indicated maliciousness, supporting the observed lure.

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/how-to-hack-a-roblox-account-easy-2021-game-hack PDF link annotation
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/instant-robux_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/how-to-hack-in-any-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-roblox-cards-pin-number_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/coin-master-mod_GM406889139.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/robux-today_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/how-to-hack-into-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/roblox-com-www_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/unpatchable-robux-hack-website_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/how-to-get-everything-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • https://e-learning-mts-nurussaadah.com/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3106 22160 bytes
SHA-256: bf530006ee73fd67c013cb67677a04d9b128244bee08f9941b60f942d495b6c5
font_01_sfnt_off00006250.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6250 19644 bytes
SHA-256: 3c2604ed908c09dd80eef396d7e75b69619a54d380728d377e7f54a8b000dce0

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