Malicious PDF — malware analysis report

Static analysis result for SHA-256 00c46bbb66b9ee89…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 06:27:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 300eafdb53f1313c47479bde6b5985da SHA-1: dbc2d15dc0baa9803768dcc9f0b39937a68555a2 SHA-256: 00c46bbb66b9ee892d95889b6323e168a019ca5f6059a182de107727cb46231b
102 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which are related to game hacks and cheats, suggesting a lure for users to download potentially malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The document body and heuristics indicate a pattern of distributing links to external resources that may host malware or facilitate further compromise.

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-sjywars-servers-for-roblox-game-hack PDF link annotation
    • http://www.biochemix.com/uploaded_files/userfiles/files/roblox-dragon-ball-mastered-script-hack_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/dailyrobux_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/roblox-survivalist-alpha-hack_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/free-app-roblox-play-as-a-guest_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/how-to-get-free-robux-ihaxgames_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/harked-cheat-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/admin-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/coin-master-free-spin-no-offers_GM406889139.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/free-account-in-roblox-login-password_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/free-tiktok-followers-and-likes_GM835599320.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/minish-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://www.biochemix.com/uploaded_files/userfiles/files/how-to-hack-robux-with-inspect-element_GM431946152.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
font_00_sfnt_off00002ec3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC3 22708 bytes
SHA-256: 7b67eb3ab10f8e4b858bcf17f75daa615a4c9fdc47c2e5ba55f796a709ecd184
font_01_sfnt_off000061a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A3 19296 bytes
SHA-256: 801b819620c3f3e726b41b51731be0edc14165395e5f965fafa5a1e5d1400baa

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