Malicious PDF — malware analysis report

Static analysis result for SHA-256 37324da525d44598…

MALICIOUS

PDF

36.7 KB Created: 2021-05-14 04:28:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ceeb712670bb8643051ed370696c1a94 SHA-1: e361a0fe4a744c76930b42d47eff8c3f3c7755b7 SHA-256: 37324da525d445983b7ea7d81951c4d9e846026cbb43e64739914b6a58f9a00f
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure for a 'free generator / game hack' which redirects to a known malicious URL. It also presents a fake CAPTCHA or human verification prompt to trick the user into interacting with the malicious link. The embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

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/roblox-tracker-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_off00003123.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3123 28288 bytes
SHA-256: f285c31c41cf9a021b1d0f448a16be3c64a0a58eeeafc1d35908fb042349b398
font_01_sfnt_off00006e4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4A 18184 bytes
SHA-256: 72f8522d23e1124dd8ed7fdd7308c58d02d03d2ede9b00fcb85fd7d8fd1c97df