Malicious PDF — malware analysis report

Static analysis result for SHA-256 23566aa6a3dfa126…

MALICIOUS

PDF

45.9 KB Created: 2021-05-14 00:08:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9fee5056395202a0e4a60ddd32367a4f SHA-1: 5395d47aaa702bb86f12ef23aef1efb500c6d392 SHA-256: 23566aa6a3dfa126f01a3592102a44d8cd96d8796a342aa7af92c832b1f855bd
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 0.9980

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 https://netcdn.xyz/app/431946152/free-roblox-gift-card-game-hack PDF link annotation
    • http://www.mjclautrec.fr/images/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/wurst-hacks_GM479516143.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/free-robux-script_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/free-robux-live_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/free-roblox-shirt-templates_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/coin-master-levels_GM406889139.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/how-to-get-free-robux-2021-no-human-verification_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_off00004944.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4944 30032 bytes
SHA-256: d3ffaadf7953d3e2616c466f3cbb3e644aa4d502258a97fac06ebd145201b7ce
font_01_sfnt_off0000904c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x904C 18572 bytes
SHA-256: d6dd878634c6e0bfa0573f8d07d8c04072d5223543faa3ff40eccc306bc8b9ad

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