Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b02b6d13eb4e8f5…

MALICIOUS

PDF

36.8 KB Created: 2021-05-16 08:44:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0e0768a0fcbce7ae717e4a707d501d3e SHA-1: 6d76b6fe917757bd1017f1776b0c448db1657bde SHA-256: 7b02b6d13eb4e8f5c89175a5afbd2902ec4887054e1be141c4e12fd0702bb07b
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free Robux" generator, which is a common tactic for phishing and malware distribution. It embeds a link that redirects to known malicious infrastructure, indicating an attempt to lead the user to a compromised site or download a payload. No scripts were extracted, but the presence of embedded URLs and the lure strongly suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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/free-robux-no-gift-card-game-hack In 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_off0000341f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x341F 24812 bytes
SHA-256: 6b3d49ec2dd2de273aa656bcaf544a6416243fee888f808bbb6f2d0a5750107b
font_01_sfnt_off00006d45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D45 18640 bytes
SHA-256: 5e2a3e67d4e6faa48e47b93c69738121aad1fd6f7e815cfd3538255806571323

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