Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffda00ac5416dd50…

MALICIOUS

PDF

35.6 KB Created: 2021-06-29 13:11:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: bc78950746ac54c130dfa7807a57c1bc SHA-1: 7b5b77f6e564fd2838366c8b588a9907b394a5a0 SHA-256: ffda00ac5416dd50f37426a85b0ea924259c2d069761d1c5c99b4d1ffbd3dc51
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains numerous embedded URLs and a prominent link in the document body, all related to obtaining free Robux or game hacks, suggesting a phishing or malware distribution lure. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs indicates an attempt to redirect the user to a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with a phishing or downloader attack.

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/free-robux-without-verification-on-ios-game-hack
    • http://digilibfisip.uwks.ac.id/repository/free-roblox-money-codes-2021_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/hack-code-for-roblox-v3rmillion_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/shark-bite-hack-roblox_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/roblox-speed-hack-script-pastebin-2021_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/glotis-how-to-get-free-robux-youtube_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-20210-robux-free-on-phone_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/free-robux-promo-cides_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/roblox-free-black-shirt_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/real-free-robux-codes_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/roblox-catalog-free-robux_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/free-robux-hack-generator-com_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/free-robux-star-codes_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/is-roblox-free-on-the-nintendo-switch_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/how-to-hack-a-roblox-account-on-phone_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/roblox-alone-free_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/can-u-get-free-robux_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/stop-teleport-hacking-roblox_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/roblox-how-to-hack-2021_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/free-robux-no-apps-needed_GM431946152.pdf
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032a3.bin
262f12f7e9f5ad39d53fbd91c06f3c3dbbe6cf3f646674ab6679f9b496ec2c49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32A3 22532 bytes
font_01_sfnt_off0000651d.bin
8795776b17b3a8972f2eaf9c9354749fca6b783c40b2322d7ecd5b360a0628d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x651D 19436 bytes

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