Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ed44b4860f18df2…

MALICIOUS

PDF

39.0 KB Created: 2021-05-13 05:33:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cc188a79f485bd238e510416cf98018f SHA-1: eef0cd27441b2cc371d805e2708fcb2754dee63b SHA-256: 6ed44b4860f18df2c0fdcad1d9327f0bc834b92da3ecac30d836ba8a1dccf82d
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a lure for a 'free generator / game hack' which redirects to a known malicious URL. It also displays a fake CAPTCHA, likely to trick the user into interacting with the malicious link. The embedded URL is the primary indicator of malicious intent, suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

Heuristics 5

  • 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.
  • 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
  • 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-headless-head-roblox-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_off0000362d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x362D 27808 bytes
SHA-256: 4e487ef4719279f55df85359971c281614b687d4b52d4c13dda0d92cf074d931
font_01_sfnt_off00007704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7704 18348 bytes
SHA-256: 63d99b8cbf455ab0d965626ac401ea421cc47a85f69736e4fa719bce4e2c55ac

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