Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa2afdf0d192bdd…

MALICIOUS

PDF

42.0 KB Created: 2021-05-14 06:33:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8b43179ca2791d3128a95f6bf5e5682e SHA-1: 26b242884313a53e750089a0cff87c1403dff8bc SHA-256: faa2afdf0d192bdd4fbe7936894caa5f3d06f8bb560f1e15a0b53ac685609954
142 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, many of which are disguised as PDF files related to game cheats and hacks. The presence of a fake CAPTCHA heuristic indicates a social engineering attempt to trick the user into interacting with these links. The primary URL, https://netcdn.xyz/app/479516143/mcpe-client-game-hack, likely serves as a landing page or download source for a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/mcpe-client-game-hack
    • http://westt.com.br/ckfinder/userfiles/files/how-to-get-free-robux-in-2021_GM431946152.pdf
    • http://westt.com.br/ckfinder/userfiles/files/minecraft-free-minecoins_GM479516143.pdf
    • http://westt.com.br/ckfinder/userfiles/files/free-robux-no-human-verification_GM431946152.pdf
    • http://westt.com.br/ckfinder/userfiles/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdf
    • http://westt.com.br/ckfinder/userfiles/files/hack-coin-master-no-human-verification_GM406889139.pdf
    • http://westt.com.br/ckfinder/userfiles/files/mcpe-master-coins-hack-download_GM406889139.pdf
    • http://westt.com.br/ckfinder/userfiles/files/free-spins-coin-master-blogspot_GM406889139.pdf
    • http://westt.com.br/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdf
    • http://westt.com.br/ckfinder/userfiles/files/download-hack-coin-master-apk_GM406889139.pdf
    • http://westt.com.br/ckfinder/userfiles/files/free-pe_GM479516143.pdf
    • http://westt.com.br/ckfinder/userfiles/files/how-to-get-free-cards-sets-for-coin-master_GM406889139.pdf
    • http://westt.com.br/ckfinder/userfiles/files/coin-master-free-spins-for-today_GM406889139.pdf
    • http://westt.com.br/ckfinder/userfiles/files/minecraft-mobile-free_GM479516143.pdf
    • http://westt.com.br/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
    • http://westt.com.br/ckfinder/userfiles/files/free-minecraft-realms-to-join_GM479516143.pdf
    • http://westt.com.br/ckfinder/userfiles/files/windows-10-minecraft-hacks_GM479516143.pdf
    • http://westt.com.br/ckfinder/userfiles/files/funbloxxyz-free-robux_GM431946152.pdf
    • http://westt.com.br/ckfinder/userfiles/files/coin-master-links-2021_GM406889139.pdf
    • http://westt.com.br/ckfinder/userfiles/files/free-robux-generator-without-verification_GM431946152.pdf
    • http://westt.com.br/ckfinder/userfiles/files/working-coin-master-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d6a.bin
f505a62b8820996639a874697a6c23d96eb99b94f6ed5347504ce695ae03d8d7		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D6A 24048 bytes
font_01_sfnt_off00008446.bin
4a17134cdde8626f1e1842e656fddffa42f6af1ea5cbed108b9034da6d5c6338		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8446 17592 bytes

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