Malicious PDF — malware analysis report

Static analysis result for SHA-256 1952270d8a184689…

MALICIOUS

PDF

45.3 KB Created: 2021-06-03 22:01:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f4ab569bbe8a3d53f41911a8a6404a1e SHA-1: 4db7c9682459f76e043ff2c3b8c2784bdcc7880c SHA-256: 1952270d8a18468980473461cd50563b82eee8b942353018e8fd7f262506dc77
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free game currency and hacks, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect users to a potentially harmful site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/406889139/60-free-spins-coin-master-game-hack PDF link annotation
    • http://www.library.umbjm.ac.id/repository/roblox-18_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-spin-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/my-robux_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • http://www.library.umbjm.ac.id/repository/coin-master-mod-apk-unlimited-spin-download-free-full-version_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
stream_004_off000052e3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52E3 25696 bytes
SHA-256: be137173027ace3cc431affa927445d31bac23910977ac9a68a949c76f20941b
font_01_sfnt_off00008ebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EBD 18224 bytes
SHA-256: c1ecca62003467cdf8c5fbac224d7e39febf20c3e1f0cb28698ef381036d4826

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