Malicious PDF — malware analysis report

Static analysis result for SHA-256 94553256cc4e3b42…

MALICIOUS

PDF

33.4 KB Created: 2021-07-06 07:34:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f0a86cf6adc208f2ec99b965aa14ed2b SHA-1: d369e5115a68f4e371f070795077122a7984971c SHA-256: 94553256cc4e3b423b243a3b98006778fcfbbf5284b2c8f9f1697eae06451a80
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free Robux and game hacks, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to potentially malicious content or download further payloads.

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.tw/app/431946152/can-you-get-robux-for-free-game-hack PDF link annotation
    • http://library.persadabunda.ac.id/repository/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-to-hack-on-roblox-jail-break_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/como-hackear-phantom-forces-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-roblox-accounts-with-robux-2021-october_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-frappe-hack-script_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-to-get-free-plus-on-meep-city-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/robux-survey_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/becoming-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-jailbreak-how-to-get-money-hack_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://library.persadabunda.ac.id/repository/how-can-you-get-robux_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_off00002e55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E55 21564 bytes
SHA-256: 9292b9a695defca6b5c6124d863be71fd5b2ea07eb7940cde1f9197153e69d2a
font_01_sfnt_off00005d84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D84 18984 bytes
SHA-256: 2c6f447800a96913986af3bd62aa8a594d802346a7a39b4742ef2d084cdb3097

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