Malicious PDF — malware analysis report

Static analysis result for SHA-256 772fe5157bd4b410…

MALICIOUS

PDF

34.7 KB Created: 2021-06-26 04:06:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 4493e467f095956e9975638d145812a0 SHA-1: 4fd19535445b1a1a1373aa8d0791d2caf576bdc1 SHA-256: 772fe5157bd4b410128dd695d4c26ab279427cffe07519c53f013e6da1911a27
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, directing users to websites that promise free items or hacks for games. The ML classifier strongly flagged this PDF as malicious, and the embedded URLs likely lead to further malicious content or phishing pages. No scripts were extracted, but the document's structure and content indicate a social engineering 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-free-roblox-iteams-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/free-roblox-groups_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spin-link-daily_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/when-was-minecraft-free_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-deathrun-2-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-a-hacked-account-back-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/download-coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-free-pants_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/daily-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-daily_GM406889139.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_off00002f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F85 22812 bytes
SHA-256: 24bbab8cf8e7dd4f422c8afe1110e885dea4feedd890223e01ec3fd2b9f2a2a1
font_01_sfnt_off0000621d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621D 19176 bytes
SHA-256: 5453f55feaff445812038e3c36c4f4431af1b0a3f7f3c9a11cbcd3c02c818b6d

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