Malicious PDF — malware analysis report

Static analysis result for SHA-256 9715ac6f5e5bacfb…

MALICIOUS

PDF

35.9 KB Created: 2021-06-30 01:19:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 8ee4772cf3638d7cbca59775d1af0ddb SHA-1: 0537a01586848515a8072c0b9c4ae98f22fd97b0 SHA-256: 9715ac6f5e5bacfbcee5705c8afb540f0fa1252ab719b9d1ede8475661ef4a85
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to obtaining free Robux, a popular in-game currency, directing users to a malicious URL. This technique is commonly used in phishing and scam campaigns to trick users into visiting potentially harmful sites. The ML classifier strongly flagged this PDF as malicious, 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-get-lots-of-robux-free-2021-game-hack PDF link annotation
    • http://library.poltekkes-palangkaraya.ac.id//repository/minecraft-tools_GM479516143.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/how-to-get-free-robux-for-cumputer_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/how-to-get-free-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/esp-hack-roblox-counter-blox_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/apps-for-friends-2021-free-robux-site-playgooglecom_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/roblox-join-players-that-arent-freind-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/minecraft-beta-free_GM479516143.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/como-usar-cheat-engine-para-hackear-roblox_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id//repository/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/como-hackear-roblox-para-tener-robux-2021-facil_GM431946152.pdfIn PDF document text
    • http://library.poltekkes-palangkaraya.ac.id/repository/how-to-hack-roblox-accounts-v3rmillio_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_off00003246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3246 23364 bytes
SHA-256: 2d6d40e303a0adc6af25144e1515479cfa437a6a1b516cabce4351de68a7cd1d
font_01_sfnt_off00006637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6637 19384 bytes
SHA-256: e57e01a47d15146a859b6bce91b7414ab71f748d145893aa5d3b7e5985a4d9b9

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