Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dea567915390cf8…

MALICIOUS

PDF

53.8 KB Created: 2021-05-14 14:31:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b9a04f6a76e9bfde21f6eed7f3242ebd SHA-1: 3aa87fd1a28c24d00827bfd66eec17b290818a46 SHA-256: 0dea567915390cf8c29142fafcea15d230fe5b5712987d81597ceb5b808b944c
142 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF gateways promising game hacks and cheats. The presence of a fake CAPTCHA heuristic indicates a user interaction designed to trick the user into proceeding with a malicious action, likely downloading a payload or visiting a phishing site. The document's content and structure strongly suggest a lure for users seeking unauthorized access to game features.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9365

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/how-to-hack-to-get-robux-game-hack
    • http://jdlrelocation.com/images/2021-no-human-verification-hack-for-coin-master_GM406889139.pdf
    • http://jdlrelocation.com/images/how-to-get-free-robux-no-human-verification_GM431946152.pdf
    • http://jdlrelocation.com/images/real-free-robux-codes_GM431946152.pdf
    • http://jdlrelocation.com/images/coin-master-hack-tool-no-survey_GM406889139.pdf
    • http://jdlrelocation.com/images/minecraft-wurst_GM479516143.pdf
    • http://jdlrelocation.com/images/free-spins-and-coins-for-coin-master-game_GM406889139.pdf
    • http://jdlrelocation.com/images/free-robux-without-verification-2021_GM431946152.pdf
    • http://jdlrelocation.com/images/how-do-you-get-free-robux_GM431946152.pdf
    • http://jdlrelocation.com/images/coinmaster-links_GM406889139.pdf
    • http://jdlrelocation.com/images/coin-master-redeem-code-free_GM406889139.pdf
    • http://jdlrelocation.com/images/roblox-fun-com-free-robux_GM431946152.pdf
    • http://jdlrelocation.com/images/free-spin-link-for-coin-master-game_GM406889139.pdf
    • http://jdlrelocation.com/images/how-to-really-hack-coin-master_GM406889139.pdf
    • http://jdlrelocation.com/images/claim-free-spins-coin-master_GM406889139.pdf
    • http://jdlrelocation.com/images/free-spins-coin-master-2021_GM406889139.pdf
    • http://jdlrelocation.com/images/daily-coin-master-free-spins_GM406889139.pdf
    • http://jdlrelocation.com/images/coin-master-free-coins_GM406889139.pdf
    • http://jdlrelocation.com/images/free-spins-coin-master-app-iphone_GM406889139.pdf
    • http://jdlrelocation.com/images/free-robux-without-human-verification_GM431946152.pdf
    • http://jdlrelocation.com/images/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bcc.bin
11ec577d568fe52f23ce52e37ae79955d7aa2981fb98c633c156f949cec2f201		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BCC 38892 bytes
font_01_sfnt_off0000a2d0.bin
40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2D0 3884 bytes
font_02_sfnt_off0000af78.bin
e2a97b64806b22db336191728b408e5b7179700d4ee5fd3b4b30addea2706a3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF78 18516 bytes

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