Malicious PDF — malware analysis report

Static analysis result for SHA-256 af70e989fccda12c…

MALICIOUS

PDF

42.8 KB Created: 2021-05-19 23:30:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 84c86b775c92f70eb9ba58aaf04d5608 SHA-1: 750951b972601771e863dfcecaa8796efd9f60f5 SHA-256: af70e989fccda12c578c9f2edfdc71dccf3f9642ea0c8369707f8086b1fcd417
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a specific URL in its body, all pointing to sites offering game hacks and virtual currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to attract users with deceptive content. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is intended to lead users to potentially harmful downloads or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/kachifpro-game-hack
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/free-robux-gift-card-codes-2021_GM431946152.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/coin-master-hack-android_GM406889139.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/how-to-get-unlimited-robux_GM431946152.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/free-coin-coin-master_GM406889139.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/coin-master-free-daily-spins-and-coins_GM406889139.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/spins-gratis-coin-master-hoy_GM406889139.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/united-gaming-net-coin-master-hack_GM406889139.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/blogspot-coin-master-free-spins_GM406889139.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/coin-master-hacker-club_GM406889139.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/how-to-get-free-chest-in-coin-master_GM406889139.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-march_GM406889139.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/free-robux-rewards_GM431946152.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/how-to-get-free-robux-instantly_GM431946152.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/rbx-roblox_GM431946152.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/op-rewards-free-robux_GM431946152.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/free-robux-today_GM431946152.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdf
    • https://www.esmartdigitalcard.com/uploaded_files/userfiles/files/coin-master-facebook-page_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cc6.bin
790fbe375ef10cb2042627d676b082b39091a478b01458bd2d8242257be9dca1		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CC6 25084 bytes
font_01_sfnt_off000086b8.bin
f5f16e9fe06415f99f9f196ec79e922628d3dac9c37f6a7894d79eeb781dffd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86B8 17784 bytes

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