Malicious PDF — malware analysis report

Static analysis result for SHA-256 59b517b53ecaad82…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 16:00:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e50efc692c09e6a927127a36fc14b63f SHA-1: 0133e2e61a2f8fce7a3768d26b943ae3fa6d7d45 SHA-256: 59b517b53ecaad82287a319d545911eb5f26fd688272019a7a148fe5295891df
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. 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 0.9980

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/406889139/coin-master-free-spins-and-coins-haktuts-game-hack PDF link annotation
    • http://stitqi.ac.id/website/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-key-free-spin_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-800-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-crash-server-hack-script_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-without-verification-code-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/hacks-on-roblox-app_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/robuxy-com-generator_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/online-hacking-tricks-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/javascript-robux-hack_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-redeem-robux_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
stream_002_off0000302b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x302B 22844 bytes
SHA-256: 8a915fd5226d3de6e9b82ef8469514100d917793a7722da39534e8e377c6e792
font_01_sfnt_off000062f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F9 18656 bytes
SHA-256: 2d759c9c8811e6c0575dd1569354feb394dafb387e5a2f9a3fadbada3c585f82

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