Malicious PDF — malware analysis report

Static analysis result for SHA-256 3257bb2522ada465…

MALICIOUS

PDF

33.3 KB Created: 2021-07-20 11:25:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c16ea125d38452a96527675645c4b3cf SHA-1: 88293030d66b2db0bb839ce335be348ed0937a18 SHA-256: 3257bb2522ada4651b36683747545213f98aace8405afbeb505e6ed1c958c669
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 0.9942

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-links-free-spins-game-hack PDF link annotation
    • https://cdu-lengerich.de/images/free-robux-group_GM431946152.pdfIn PDF document text
    • https://cdu-lengerich.de/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://cdu-lengerich.de/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://cdu-lengerich.de/images/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://cdu-lengerich.de/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://cdu-lengerich.de/images/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://cdu-lengerich.de/images/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://cdu-lengerich.de/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://cdu-lengerich.de/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://cdu-lengerich.de/images/download-minecraft-free-hiapphere_GM479516143.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_off00002dea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DEA 22812 bytes
SHA-256: 3d324fa548fefda631ab5e53552f649e18786bfd3f6a8a3e7aba4f0245528811
font_01_sfnt_off000060fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FA 18056 bytes
SHA-256: 95118de0f1fa2d9d8d6d34d7ce9f6e9c56d43c25fce4d2a4bd556d275959b9e0

Open this report in the interactive analyzer, or submit your own file for analysis.