Malicious PDF — malware analysis report

Static analysis result for SHA-256 fce2954836b62ef9…

MALICIOUS

PDF

46.7 KB Created: 2021-06-03 23:47:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 333fbc31d9dbe87a0b437954a1f7467e SHA-1: 6caf66151773f9b9eda941318cb8baac22477256 SHA-256: fce2954836b62ef9c1b96627d0d7a653590b0318088ea6009510b2ee37fcd21d
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses an MFA/2FA-themed lure. 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 0.9832

Heuristics 5

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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 https://netcdn.online/app/431946152/how-to-get-free-robux-easy-hack-game-hack PDF link annotation
    • http://elibrary.perludem.org//repository/coun-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-vip-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/pubg-uc-kaise-khariden_GM1330123889.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coin-master-hack-online-without-human-verification_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-robux-gift-card-codes-2021_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_off000058a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58A7 25048 bytes
SHA-256: 2789d007c46bde5eeacf33b55e4265a1849a3c7c81efc831b5cd9b50e99376f6
font_01_sfnt_off0000921e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x921E 18860 bytes
SHA-256: ae4481784f2b59baf7f887bcc8933de4398304efe668e0a39e1c63b4066a7356

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