Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeb4fa007783cbac…

MALICIOUS

PDF

43.2 KB Created: 2021-05-11 17:03:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 27466804f0abe71f46db9c2b8e825b26 SHA-1: 4919ded15a9b46f526c58b5a6027b065c57d2519 SHA-256: eeb4fa007783cbac63e7985b7c10ad78e2ad4348fdde1db0332710c14038898c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains a large number of external links, identified as a PDF link farm. The primary external URL points to a page promising a 'Coin Master spin hack', suggesting a lure for users seeking game cheats. The presence of numerous similar links indicates a likely SEO manipulation or content farm strategy, potentially leading to malicious sites or further malware downloads.

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/406889139/how-to-duplicate-coin-master-spin-hack-game-hack
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-hack-without-verification-for-iphone_GM406889139.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/how-to-get-free-robux-2021-easy_GM431946152.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-hack-com_GM406889139.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/minecraft-windows-free_GM479516143.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/how-to-get-more-spins-on-coin-master-hack_GM406889139.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-unlimited-spin-link_GM406889139.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/hack-coin-master-for-iphone_GM406889139.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-free-daily-spins-and-coins_GM406889139.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/does-roblox-premium-expire_GM431946152.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/robux-free-promo-codes_GM431946152.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/free-coin-master-spins_GM406889139.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/roblox-adopt-me-hack_GM431946152.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/robux-free-gift-card-org-hack_GM431946152.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/master-coin-free-spin_GM406889139.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/free-coin-master-androd-cheats-2021_GM406889139.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/coin-master-hack-without-human-verification_GM406889139.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/hacks-for-roblox-jailbreak_GM431946152.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/free-coins-coin-master-no-human-verification_GM406889139.pdf
    • http://www.bestbist.com/assets/uploads/pages/files/how-to-get-free-robux-not-a-scam_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b80.bin
4027805da8a9654aaa68285051cec10fd5cb245a604e06280e212d3908bb9858		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B80 25780 bytes
font_01_sfnt_off00008638.bin
63f0f1c978d8f92ee707179f18d26c907503c05d135115955c3f0d9e37ea33fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8638 18436 bytes

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