Malicious PDF — malware analysis report

Static analysis result for SHA-256 e525999fd50f665c…

MALICIOUS

PDF

32.4 KB Created: 2021-06-27 03:07:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: abe1f7f62416cafe9942b1c1873a439f SHA-1: 3846455483a3e50903bbbac2a47f36cd3552419b SHA-256: e525999fd50f665cd1ae66478d1d1736f2c81481566f2d4bc270bc34b724ebc1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains lures for free in-game currency, directing users to download potentially malicious files from external URLs. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and download button lures supports a phishing or social engineering attack pattern. No scripts were extracted, but the overall structure suggests a malicious document intended to trick users into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/hack-de-monedas-de-roblox-game-hack
    • https://www.owlweb.co.uk/uploads/files/files/you-to-get-free-robux-no-hack_GM431946152.pdf
    • https://www.owlweb.co.uk/uploads/files/files/coin-master-map_GM406889139.pdf
    • https://www.owlweb.co.uk/uploads/files/files/roblox-hacks-in-counter-blox-roblox-offensive_GM431946152.pdf
    • https://www.owlweb.co.uk/uploads/files/files/free-spin-coin_GM406889139.pdf
    • https://www.owlweb.co.uk/uploads/files/files/free-robux-generator-the-roblox-hack-2021_GM431946152.pdf
    • https://www.owlweb.co.uk/uploads/files/files/roblox-generator-no-verification_GM431946152.pdf
    • https://www.owlweb.co.uk/uploads/files/files/microsoft-bing-free-robux_GM431946152.pdf
    • https://www.owlweb.co.uk/uploads/files/files/spin-and-coin_GM406889139.pdf
    • https://www.owlweb.co.uk/uploads/files/files/roblox-lovenet_GM431946152.pdf
    • https://www.owlweb.co.uk/uploads/files/files/roblox-free-online-demo_GM431946152.pdf
    • https://www.owlweb.co.uk/uploads/files/files/minecraft-free-download-mac_GM479516143.pdf
    • https://www.owlweb.co.uk/uploads/files/files/como-generar-coin-master-free-spins_GM406889139.pdf
    • https://www.owlweb.co.uk/uploads/files/files/coin-master-free-spins-2021-hack_GM406889139.pdf
    • https://www.owlweb.co.uk/uploads/files/files/tiktok-free-gas-hack_GM835599320.pdf
    • https://www.owlweb.co.uk/uploads/files/files/free-minecraft-hosting-24-7_GM479516143.pdf
    • https://www.owlweb.co.uk/uploads/files/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://www.owlweb.co.uk/uploads/files/files/rbxoffers-com-free-robux_GM431946152.pdf
    • https://www.owlweb.co.uk/uploads/files/files/coin-master-official-fan-page_GM406889139.pdf
    • https://www.owlweb.co.uk/uploads/files/files/minecraft-launcher-download-free_GM479516143.pdf
    • https://www.owlweb.co.uk/uploads/files/files/free-coin-master-spins-and-coins-for-daily_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a8e.bin
8592ce5eb7b703ab672326207feb2763d89aeca13105ba9aa474b4574a3d6bf4
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8E 21412 bytes
font_01_sfnt_off00005933.bin
9819a96d602082a2ba2170dd87f0e9e78cf7d0596117587643c413f8850cc1cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x5933 19192 bytes