Malicious PDF — malware analysis report

Static analysis result for SHA-256 969b8554951e812d…

MALICIOUS

PDF

34.2 KB Created: 2021-07-06 09:57:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b78456b8b1e6dfd4f399c7ed45ec0369 SHA-1: 2006830beb4f30cf72c6200ca95f1f6df891cab2 SHA-256: 969b8554951e812d2b2d6c322782dcbeb8903bedd700d20b658d3c060232a376
62 Risk Score

Malware Insights

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

The document contains a lure for downloading a file, indicated by the 'SE_DOWNLOAD_BUTTON' heuristic and the presence of URLs related to game hacks and free items. The ML classifier strongly flagged this PDF as malicious, suggesting it is designed to trick users into downloading malware. No scripts were extracted from this sample.

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.tw/app/431946152/robux-prices-game-hack
    • http://lib.uho.ac.id/library/repository/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdf
    • http://lib.uho.ac.id/library//repository/free-minecraft-server_GM479516143.pdf
    • http://lib.uho.ac.id/library//repository/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://lib.uho.ac.id/library//repository/coin-master-heaven-free-daily-spins_GM406889139.pdf
    • http://lib.uho.ac.id/library/repository/coin-master-free-coins-and-spins-link_GM406889139.pdf
    • http://lib.uho.ac.id/library/repository/blox-land-free-robux_GM431946152.pdf
    • http://lib.uho.ac.id/library/repository/spin-free-coin-master_GM406889139.pdf
    • http://lib.uho.ac.id/library//repository/hacks-for-minecraft-windows-10_GM479516143.pdf
    • http://lib.uho.ac.id/library/repository/the-advanced-roblox-coding-book-free_GM431946152.pdf
    • http://lib.uho.ac.id/library//repository/i-need-robux_GM431946152.pdf
    • http://lib.uho.ac.id/library/repository/coin-master-links-to-free-spins_GM406889139.pdf
    • http://lib.uho.ac.id/library/repository/free-roblox-accounts-with-builders-club_GM431946152.pdf
    • http://lib.uho.ac.id/library/repository/easy-robux-generator_GM431946152.pdf
    • http://lib.uho.ac.id/library/repository/haktuts-coin-master-free-spins-2021_GM406889139.pdf
    • http://lib.uho.ac.id/library/repository/free-robux-giver_GM431946152.pdf
    • http://lib.uho.ac.id/library/repository/free-executor-roblox_GM431946152.pdf
    • http://lib.uho.ac.id/library/repository/free-spins-coin-master-app_GM406889139.pdf
    • http://lib.uho.ac.id/library/repository/coin-master-20-free-spins-link-2021_GM406889139.pdf
    • http://lib.uho.ac.id/library/repository/coin-master-free-spins-link-download-for-iphone_GM406889139.pdf
    • http://lib.uho.ac.id/library//repository/how-do-you-hack-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030ba.bin
ff4c2248ae4fafaf94ea7d9398862f8eefffb73c39ed309cd8e36ee63ede86aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30BA 22044 bytes
font_01_sfnt_off00006179.bin
917b2b595c85e899e08b6a40e7434d48f59ea0235caebc632e03070b6eb7ba4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6179 18824 bytes

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