Malicious PDF — malware analysis report

Static analysis result for SHA-256 c48624d61b4bcb11…

MALICIOUS

PDF

25.3 KB Created: 2021-06-17 16:22:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2fdc52cf6a5cd6a83884e6114d33dddb SHA-1: 0c9489dbb62d27e43fcdf4b78321957e832472a9 SHA-256: c48624d61b4bcb11554d53b4bca78ced3dc77d90dfcc6bc212e7a0d0b7903272
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a critical heuristic firing indicating it links to a malicious redirector disguised as a game hack. The document body contains text and a URL that reinforce this lure, attempting to trick the user into clicking the malicious link. The primary purpose appears to be directing the user to a malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.0360

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 http://netcdn.co/app/431946152/hack-this-roblox-account-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
font_00_sfnt_off00001472.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1472 20200 bytes
SHA-256: e2288f7c129e88673df8cc25bc001a8ac5bb6cfda55ad0c0af81d8e958652e8c
font_01_sfnt_off00003f48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F48 19000 bytes
SHA-256: f09fd47822dbc37269ba90b4c467ca6096d200ceffb89f0499b216a593ad64fc