Malicious PDF — malware analysis report

Static analysis result for SHA-256 f297b5cc80f31b50…

MALICIOUS

PDF

39.1 KB Created: 2021-05-21 09:40:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7118f5b098c1578a04cbee17fe7bc6b9 SHA-1: a67a736fe87782d7c1a97ffebe8ecdaae523c08d SHA-256: f297b5cc80f31b509118aa4a8f2dd13e272fe1a13918615bb06d5a89976e0057
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, instructing the user to click a link to access a 'Roblox Generator'. This is a common social engineering tactic to trick users into downloading potentially malicious files. The document also contains multiple URLs pointing to other game hack-related PDFs, suggesting a campaign distributing such lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/microsoft-rewards-free-robux-game-hack PDF link annotation
    • http://jdlrealty.ca/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://jdlrealty.ca/images/coins-master-hacks_GM406889139.pdfIn PDF document text
    • http://jdlrealty.ca/images/paypal-to-pubg-uc_GM1330123889.pdfIn PDF document text
    • http://jdlrealty.ca/images/pokemon-go-free-xp_GM1094591345.pdfIn PDF document text
    • http://jdlrealty.ca/images/can-pokemon-go-free-evolve-after-trade_GM1094591345.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_002_off000034a3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34A3 28300 bytes
SHA-256: 1b9c5dd8133959d6d243678a145ffc149d6c70e06939d83779fa9553da12b183
font_01_sfnt_off0000758f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x758F 19000 bytes
SHA-256: bff5f29590f6f5248b316a672d4808b6e9c266d69e419f7f33dc0e1be49a23cf

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