Malicious PDF — malware analysis report

Static analysis result for SHA-256 e925296fecc937a5…

MALICIOUS

PDF

43.2 KB Created: 2021-05-16 20:07:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d89ae9b67a350a075d7edba505bb7dd8 SHA-1: bfc0534aa58f1e39e39c55b9d069f91ff30123df SHA-256: e925296fecc937a534d0a51969b70f4d2e799f455464d280995e447dc763dad0
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are disguised as download links for game cheats and hacks. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of such links, suggesting a malicious intent to redirect users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • 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.
  • 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/479516143/minecraft-pe-apk-download-free-0.15-0-game-hack
    • http://mcdougalfamily.site/images/free-spins-and-coins-coin-master_GM406889139.pdf
    • http://mcdougalfamily.site/images/free-spin-link-for-coin-master-game_GM406889139.pdf
    • http://mcdougalfamily.site/images/100-free-spins-coin-master-2021_GM406889139.pdf
    • http://mcdougalfamily.site/images/coin-master-daily-bonus-hack_GM406889139.pdf
    • http://mcdougalfamily.site/images/get-free-gold-cards-in-coin-master_GM406889139.pdf
    • http://mcdougalfamily.site/images/coin-master-free-spins-hack-2021_GM406889139.pdf
    • http://mcdougalfamily.site/images/haktuts-coin-master-free-spin-link_GM406889139.pdf
    • http://mcdougalfamily.site/images/roblox-hacked-com-2021_GM431946152.pdf
    • http://mcdougalfamily.site/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdf
    • http://mcdougalfamily.site/images/coin-master-free-spin-and-coins-fbid-links_GM406889139.pdf
    • http://mcdougalfamily.site/images/free-robux-generator-com-roblox-hack_GM431946152.pdf
    • http://mcdougalfamily.site/images/free-robux-hack-us_GM431946152.pdf
    • http://mcdougalfamily.site/images/roblox-g_GM431946152.pdf
    • http://mcdougalfamily.site/images/coin-master-free-spin-realme-products_GM406889139.pdf
    • http://mcdougalfamily.site/images/coin-master-mod-version-free-download-34-4_GM406889139.pdf
    • http://mcdougalfamily.site/images/minecraft-modded-client_GM479516143.pdf
    • http://mcdougalfamily.site/images/www-robux_GM431946152.pdf
    • http://mcdougalfamily.site/images/how-to-get-free-clothing-on-roblox_GM431946152.pdf
    • http://mcdougalfamily.site/images/coin-master-game-hack-app-download_GM406889139.pdf
    • http://mcdougalfamily.site/images/100-free-coin-master-spins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c14.bin
ab679a1f14ba8d33f409c12b07b648b9d2a4fb02ef44e2058e719ffad5304b23
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C14 24740 bytes
font_01_sfnt_off000083b5.bin
28dc74618e8b02129b424bb36b85fc5c3aa5d44cc182401491d55e46ac5e52ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x83B5 19268 bytes