Malicious PDF — malware analysis report

Static analysis result for SHA-256 47aeb48a165a7c43…

MALICIOUS

PDF

34.8 KB Created: 2021-06-26 21:48:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ef722b64a30ca1c65cf3828042447708 SHA-1: 6b8e790e3995e471d43eea110572a6cfd53414fb SHA-256: 47aeb48a165a7c43a472d4d5c1e0bff10cac73a3b9dcaca1b1b3fccfdb42aa0e
62 Risk Score

Malware Insights

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

The document contains numerous embedded URLs and a visual download button lure, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence. The primary goal appears to be directing users to external sites offering game-related hacks and currency, which could lead to malware downloads or further credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/hacks-for-pet-ranch-roblox-for-free-coins-game-hack
    • http://www.en.guofuhee.com/Public/upload/editorfiles/free-robux-no-verification-needed_GM431946152.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/coin-master-hack-2021-apk_GM406889139.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/coin-master-hack-download-apk_GM406889139.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/roblox-free-robux-no-human-verification_GM431946152.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/coin-master-free-spins-and-coins-hack_GM406889139.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/coin-master-hack-ios-download-2021_GM406889139.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/minecraft-pe-free-download_GM479516143.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/coin-master-free-spins_GM406889139.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/free-code-generator-for-roblox_GM431946152.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/coin-master-hack-link-2021_GM406889139.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/roblox-people-girl_GM431946152.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/free-roblox-promo-codes-november-2021_GM431946152.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/free-roblox-followers-generator_GM431946152.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/how-can-i-get-free-robux_GM431946152.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/free-robux-no-offers-or-survey-2021_GM431946152.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/coin-master-free-spins-2021_GM406889139.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/free-spin-coin-master-iphone_GM406889139.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/pubg-uc-seller-pakistan_GM1330123889.pdf
    • http://www.en.guofuhee.com/Public/upload/editorfiles/how-do-i-get-free-spins-in-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031be.bin
9c6e1acbd5e3537863097fd59be6b53e9cd9bf7061e19c81fdecd2172be4a0c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31BE 22020 bytes
font_01_sfnt_off00006278.bin
7bf40e3596f5675f3a0cf3fd2cab7e4083689efb9014f3e07e3b98b69c3f27f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6278 19364 bytes

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