Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa4252d719c2ede…

MALICIOUS

PDF

46.1 KB Created: 2021-05-14 06:32:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d8af7973ae9314e1ab27d40c62617d10 SHA-1: 2378326d33d853eb41f717c2f1c3c96ee70c9cce SHA-256: faa4252d719c2ede1eeded02f5677d0752b953c9232391517135e4636827443e
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document exhibits malicious characteristics, including a high number of external links and a fake CAPTCHA lure designed to trick users. The document body and extracted URLs suggest a focus on scams related to game exploits and virtual currency. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate it's designed to lead users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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-someone-on-roblox-game-hack
    • http://tasleemdubai.com/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdf
    • http://tasleemdubai.com/userfiles/files/links-to-get-free-spins-on-coin-master_GM406889139.pdf
    • http://tasleemdubai.com/userfiles/files/mcpe-master-hack-unlimited-coins-download_GM406889139.pdf
    • http://tasleemdubai.com/userfiles/files/can-you-actually-get-free-robux_GM431946152.pdf
    • http://tasleemdubai.com/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdf
    • http://tasleemdubai.com/userfiles/files/hack-the-game-coin-master_GM406889139.pdf
    • http://tasleemdubai.com/userfiles/files/roblox-hack-ios_GM431946152.pdf
    • http://tasleemdubai.com/userfiles/files/code-free-robux_GM431946152.pdf
    • http://tasleemdubai.com/userfiles/files/free-executor-roblox_GM431946152.pdf
    • http://tasleemdubai.com/userfiles/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdf
    • http://tasleemdubai.com/userfiles/files/coin-master-hack-ios-no-jailbreak_GM406889139.pdf
    • http://tasleemdubai.com/userfiles/files/coin-master-hack-online-generator-without-human-verification_GM406889139.pdf
    • http://tasleemdubai.com/userfiles/files/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdf
    • http://tasleemdubai.com/userfiles/files/get-roebucks-com_GM431946152.pdf
    • http://tasleemdubai.com/userfiles/files/no-robux_GM431946152.pdf
    • http://tasleemdubai.com/userfiles/files/free-promo-codes-for-coin-master_GM406889139.pdf
    • http://tasleemdubai.com/userfiles/files/coin-master-free_GM406889139.pdf
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spins-link-today-facebook_GM406889139.pdf
    • http://tasleemdubai.com/userfiles/files/roblox-free-robux-no-human-verification_GM431946152.pdf
    • http://tasleemdubai.com/userfiles/files/free-spins-coin-master-no-survey_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a91.bin
1bf51642f41f2349acdd7273322001fd74577e29b2f28791ccb5a990820f75c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A91 26048 bytes
font_01_sfnt_off000086b9.bin
552e62132cae3603ce0819827e44d96a992bd06014cc5080bf3af4b2ea155b3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86B9 2880 bytes
font_02_sfnt_off00009091.bin
eebf4fd0ce8e014a693b7448b6f63c7fd528199174cddc1a90a23252bff1a633		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9091 18608 bytes

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