Malicious PDF — malware analysis report

Static analysis result for SHA-256 061ce29779501aa6…

MALICIOUS

PDF

42.9 KB Created: 2021-06-03 07:27:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f902c94a7de8109c6e949215a3f21bc0 SHA-1: c7d6d0c4f5ad0d437f3a805f3267ec06de15f2f2 SHA-256: 061ce29779501aa620b1e998beff1792b5624694c72f405a6ff4888eff710c23
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links designed to appear as 'game hacks' or 'free generators', acting as a link farm. The primary lure directs users to a URL associated with 'coin master free cards hack game hack'. The presence of multiple PDF links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.online/app/406889139/coin-master-free-cards-hack-game-hack PDF link annotation
    • http://library.yamasi.ac.id//repository/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-flip-master-coins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/daily-free-spins-coin-master-app_GM406889139.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_004_off00004e79.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E79 24192 bytes
SHA-256: 045b170fddf1a1db45eb7bf152c7aa7a5d486575f5c044a829a7a439b9512261
font_01_sfnt_off000085ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85BA 18056 bytes
SHA-256: ad4f2d10031887feff52537d65cf9a04719575ebe7be64232d8e0b4f73fdfdc1

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