Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9367a044f2bc1aa…

MALICIOUS

PDF

36.3 KB Created: 2021-06-22 09:34:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 334dcc665352b535b55d053604aed7ba SHA-1: 5040928c9603c9bd3afd765393eb119f5b2c5580 SHA-256: e9367a044f2bc1aa9585d4bc5667c21157da560d6683e03bfc70a2175fea6d23
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a specific URL, http://netcdn.co/app/431946152/free-roblox-party-printables-game-hack, which are likely intended to direct users to download malicious content. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a tactic to distribute malware or phishing content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-roblox-party-printables-game-hack
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/hack-an-account-on-roblox_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-downloading-anything_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/roblox-bloxburg-how-to-get-free-money_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/minecraft-education-edition-free_GM479516143.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/free-cracked-minecraft-server-hosting_GM479516143.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/roblox-hack-2021_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/buy-hacked-roblox-account_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-get-free-robux-inspect-elemt_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021-easy_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/free-robux-generator-app_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/free-robux-without-doing-anything_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/roblox-kat-hacks_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-hack-pokemon-brick-bronze-roblox-2021_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/where-to-type-hacking-codes-on-roblox_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/robux-hack-synapse_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-hack-on-roblox-btools_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-2021-android_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/promo-codes-for-free-robux_GM431946152.pdf
    • https://www.intercraftgallery.com/uploaded_files/userfiles/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034fd.bin
f34a0d687e90756908e05f1922be0ffbaf6f313485c686a99e2f2dedef26c5c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x34FD 22964 bytes
font_01_sfnt_off000068be.bin
716871f873861ad0e94874ef153936b42715f2f8d10356aabf2972f4ccb2092b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68BE 19208 bytes

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