Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0ccb3d1bd5aac50…

MALICIOUS

PDF

42.8 KB Created: 2021-05-14 10:32:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: cdfeb34d0f9232dde6c51077b352756d SHA-1: d36d84e2a42d348261c1b732851a4b65142e52e0 SHA-256: c0ccb3d1bd5aac5055564c4c9ae6443c6018be6df0f62714e4030bcbf9ea0a5b
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/406889139/free-spins-for-coin-master-game-game-hack PDF link annotation
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/coin-master-hack-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-robux-download_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-robux-no-verification-required_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_003_off00004cc4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CC4 25076 bytes
SHA-256: 5c46cebb58589e22f10b5d89e776a6291f5dfcf78ad93a8736cd9224339b3b54
font_01_sfnt_off0000856b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856B 18148 bytes
SHA-256: 3d9eadf91671033e4331a310c0b0805123b3ad5df85bc8ef5d318b7854ffa5cb

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