Malicious PDF — malware analysis report

Static analysis result for SHA-256 46b581a970b58e69…

MALICIOUS

PDF

38.2 KB Created: 2021-05-10 21:30:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 38a6a1b512cfd0da18335e5a4b3deb1e SHA-1: 4b9cc95cb975b198954c4503a224741377dbbbcb SHA-256: 46b581a970b58e692f5497d00151f6f277fb1e3e4f6bccc577f1967a3977237f
170 Risk Score

Malware Insights

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

The PDF document contains multiple links to malicious redirector infrastructure, specifically promoting a "free generator" or "game hack" lure. It also displays a fake CAPTCHA, designed to trick users into interacting with the malicious content. The primary malicious URL identified is https://netcdn.xyz/app/431946152/how-to-get-free-roblox-money-game-hack.

Machine Learning

  • Nyx PDF Classifier clean score 0.0461

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/how-to-get-free-roblox-money-game-hack In PDF document text
    • https://pasamatour.com/ckfinder/userfiles/files/claim-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_003_off00003678.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3678 28412 bytes
SHA-256: 3ffe159b700c66f58f57ac2ee19488f6f7fde7e6e7237b30d830ef42ffd97c9b
font_01_sfnt_off000072ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72EE 18592 bytes
SHA-256: b73f1f0d33754a6311a400e0f9b7fa1bed8423beec91854f27c9eb8add8b4fcc

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