Malicious PDF — malware analysis report

Static analysis result for SHA-256 c75f96acd7cbaca7…

MALICIOUS

PDF

42.9 KB Created: 2021-05-16 15:34:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8486a7d94c7997a8b3911e0f0b0e10c0 SHA-1: 7a017566fa6a7377b032e95336a209fd5f5fd24f SHA-256: c75f96acd7cbaca72187b05b73ecdd57a7e1495f2571dad4232e4348810496a7
62 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and a call-to-action lure, strongly suggesting it is designed to trick users into downloading malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The primary URL points to a "free script executor" for Roblox, a common lure for distributing malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/free-script-executor-roblox-game-hack
    • http://warehousewestllc.com/images/coin-master-heaven-links-free-spins_GM406889139.pdf
    • http://warehousewestllc.com/images/roblox-free-robux-generator_GM431946152.pdf
    • http://warehousewestllc.com/images/free-spin-link_GM406889139.pdf
    • http://warehousewestllc.com/images/hack-coin-master-iphone_GM406889139.pdf
    • http://warehousewestllc.com/images/free-robux-hack_GM431946152.pdf
    • http://warehousewestllc.com/images/roblox-hack-site_GM431946152.pdf
    • http://warehousewestllc.com/images/google-how-do-you-get-free-robux_GM431946152.pdf
    • http://warehousewestllc.com/images/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://warehousewestllc.com/images/roblox-help-free-robux_GM431946152.pdf
    • http://warehousewestllc.com/images/can-you-give-me-free-robux_GM431946152.pdf
    • http://warehousewestllc.com/images/free-robux-real-2021_GM431946152.pdf
    • http://warehousewestllc.com/images/fbchampion-com_GM406889139.pdf
    • http://warehousewestllc.com/images/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdf
    • http://warehousewestllc.com/images/latest-free-spin-coin-master-daily_GM406889139.pdf
    • http://warehousewestllc.com/images/get-coin-master-hack_GM406889139.pdf
    • http://warehousewestllc.com/images/how-to-get-free-unlimited-robux_GM431946152.pdf
    • http://warehousewestllc.com/images/coin-master-hack-no-survey_GM406889139.pdf
    • http://warehousewestllc.com/images/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdf
    • http://warehousewestllc.com/images/coin-master-download-hack-ios_GM406889139.pdf
    • http://warehousewestllc.com/images/how-to-hack-people-on-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_off00004b47.bin
cb7ff3f74b7e5a44d237bb68c801669daca6e42ed1be58558d15fe559e78d8b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B47 25664 bytes
font_01_sfnt_off00008499.bin
c1d8906df7cfed201442eecb2c05ff4a638972dd76746327367067a9273c3e32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8499 18488 bytes

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