Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3f29f284015e16…

MALICIOUS

PDF

43.7 KB Created: 2021-05-19 06:52:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c534c12712230307983e96c27cc866b4 SHA-1: b170e953dae2821d6c06268110d58fd7c6730196 SHA-256: 4e3f29f284015e1636bf0249124f4d6c145f8edf9fb39010fa844715651a16c8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks, specifically for Coin Master, directing users to a URL that appears to be a redirector to malicious content. The ML classifier strongly flagged this PDF as malicious. The embedded URLs and the document body content indicate a phishing attempt to trick users into visiting a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/how-to-get-free-skins-on-coin-master-game-hack PDF link annotation
    • http://zercalo.org/images/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-hack-1021_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • http://zercalo.org/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/is-minecraft-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://zercalo.org/images/how-to-get-free-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/robux-sites_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/free-coin-master-account_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/how-to-hack-roblox-on-mobile_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_off00004b1d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B1D 26956 bytes
SHA-256: c14c34a4bb4518ce9293b8156540c574bda133986dfef1429af1dbf8f5f39cfb
font_01_sfnt_off00008986.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8986 18044 bytes
SHA-256: bd14df214c2131ecafde850c89131197571c349499ee254458e05dff40e3b762

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