Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6ea2662d3467ef0…

MALICIOUS

PDF

37.2 KB Created: 2021-05-22 18:07:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 447434f9d20f4fd2e0c2bda8ba5bef7b SHA-1: a47421893abbb5b769465abea379fa6845807c42 SHA-256: d6ea2662d3467ef00ed5f332c0aaa8b88857f39fccd05669079bd510e78f2088
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting a 'free Robux generator'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, and the ML classifier also flagged the document as malicious. The presence of a visual download button further supports the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/robux-match.com-free-robux-game-hack In PDF document text
    • http://d-cision.nl/images/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/rewardex-robux_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/pubg-uc-no-human-verification_GM1330123889.pdfIn PDF document text
    • http://d-cision.nl/images/how-to-win-free-robux_GM431946152.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_off00003329.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3329 25384 bytes
SHA-256: 558fc258e53621c2a5e0b348e2473c949afeb861a80e85674f17098ac5690c3a
font_01_sfnt_off00006e27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E27 18904 bytes
SHA-256: 4a85ad6ffc73ad9b3f41fceca22de32e3ce7595015d69f53ae753139e52ac9f7