Malicious PDF — malware analysis report

Static analysis result for SHA-256 05a17e9de5bac6f2…

MALICIOUS

PDF

41.5 KB Created: 2021-05-03 04:32:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d871a15382d30cc9d2135015e8ce563e SHA-1: aa2b3689497edb0dcd49b2aa4dc2d2505c99764d SHA-256: 05a17e9de5bac6f2c5c69a15247e393694f17aab1c36a950596bbff989f2d8f6
82 Risk Score

Malware Insights

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

The PDF document contains a lure impersonating Netflix to trick users into clicking a link for a "Roblox Account Hacker". The embedded link directs to a URL that does not match the impersonated brand, indicating a credential phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/roblox-account-hacker-online-game-hack.
  • 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/roblox-account-hacker-online-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/roblox-robux-hack-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/all-2021-2021-free-roblox-items.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/cowboy-tshirt-roblox-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-obby-august-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-generator-no-password-required.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/best-shirt-roblox-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/snip-roblox-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-codes-9-3-19.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-ez-hacks-for-roblox-robucks.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/cheat-codes-for-ninja-assassin-roblox.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003e80.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3E80 28916 bytes
SHA-256: 5f6a9d865d5bce12907fa98e44305645a813f77f8362a6b14917f5ac26deb2ef
font_01_sfnt_off00007fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD8 18544 bytes
SHA-256: e0fadfe45899e0adb30c5acd266a29a029082de38632dd68940d0bfda4532d03

Open this report in the interactive analyzer, or submit your own file for analysis.