Malicious PDF — malware analysis report

Static analysis result for SHA-256 856e3e0dce2833fe…

MALICIOUS

PDF

41.6 KB Created: 2021-05-10 22:41:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f0dcd863ea993385eadecef4ce74d9b3 SHA-1: 3d3708d42bda74dd75276aa10119e65d1b7c8e5e SHA-256: 856e3e0dce2833fea8bc511da9f3bcbdcf9af3cee1a9a7d4c2d58761cc26427f
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 0.9971

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.xyz/app/479516143/minecraft-wurst-game-hack PDF link annotation
    • http://origamiperu.com/images/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
    • http://origamiperu.com/images/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://origamiperu.com/images/coin-master-daily-bonus-hack_GM406889139.pdfIn PDF document text
    • http://origamiperu.com/images/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • http://origamiperu.com/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://origamiperu.com/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/robux-prices_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/krnl-download_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://origamiperu.com/images/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/wurst-18-9_GM479516143.pdfIn PDF document text
    • http://origamiperu.com/images/what-is-robux_GM431946152.pdfIn PDF document text
    • http://origamiperu.com/images/rbx-website_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049db.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49DB 24756 bytes
SHA-256: 7ed8b32e0a0cc91bc13436a0e006b0ac9aab9da48af76b6e9f7e31cc608e6e06
font_01_sfnt_off00008197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8197 17904 bytes
SHA-256: 6cf7ff8bcf9245938aca4eb00b48b7f4b489249ade5837454daf8c34eab52db5

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