Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0a662e4b6e0d805…

MALICIOUS

PDF

44.5 KB Created: 2021-05-12 18:06:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2671e166e876430f51d816784cad3617 SHA-1: 9965489c27356335a65df5a869f93b8ac471c4f9 SHA-256: c0a662e4b6e0d805a5726fe522279625eacc21f24e48202b5b0d1ba404077f4e
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure related to free in-game currency, directing users to a malicious URL. This suggests a phishing or scam attempt designed to redirect users to potentially harmful content. The embedded URL is associated with known malicious redirector infrastructure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0366

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/how-to-get-free-robux-without-downloading-any-apps-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_off00003529.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3529 37144 bytes
SHA-256: add47df8bfcc93fbd7bb6997173032f2233e3e7bd1d69e90d3c987cd8cfb6613
font_01_sfnt_off000087f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F0 20052 bytes
SHA-256: 8d2cd2d3261d4f1366ff21e32ca456c14b5c97578eb3db8f52c6d359382ee2b6