Malicious PDF — malware analysis report

Static analysis result for SHA-256 b48103296a1e58ef…

MALICIOUS

PDF

43.9 KB Created: 2021-05-11 05:36:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c806a2afadcf612648d6915db6eade19 SHA-1: 0ead5c6a7e25b23f25a25255ec2d123a9636ae56 SHA-256: b48103296a1e58efb7a62c24e981b9d387a2d005c46bf97fe18d78c6db0393fd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link to a 'coin master hack' generator, indicating a lure for users seeking in-game advantages. This link, along with numerous other embedded URLs pointing to similar game-related cheats, suggests a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious.

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/coin-master-hack-version-download-2021-ios-game-hack PDF link annotation
    • http://iedarelief.us/images/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/free-spins-on-coin-masters_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-hack-online_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/how-to-use-redstone_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/free-minecraft-skins-xbox-one_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/wurst-download_GM479516143.pdfIn PDF document text
    • http://iedarelief.us/images/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://iedarelief.us/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://iedarelief.us/images/minecraft-clipart-free_GM479516143.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_off00004818.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4818 29008 bytes
SHA-256: 106f8ef31465748da9d2ee359ed5e1a1254b44a2ee07205805b98686e4cf6249
font_01_sfnt_off00008747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8747 18832 bytes
SHA-256: cc7b03749ee8e0bb295fc18f3327ccd24d21e4560feed49354a921164f87bbf0

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