Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cb582c5088887f9…

MALICIOUS

PDF

35.5 KB Created: 2021-05-23 16:58:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e007d3614e2c5408186d8323d62a4e3b SHA-1: 7dce017fb9036f636fbb34e8d92b3d024f571c35 SHA-256: 4cb582c5088887f923dd7bf6eafbc9068a405a14131ea9cd8864c87aea97e2a2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically a URL associated with 'free Minecraft resource packs game hack'. The document body and heuristics indicate a lure for game-related cheats or generators, which is a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious redirection workflow, likely intended to lead users to a site that hosts further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/479516143/free-minecraft-resource-packs-game-hack In PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/hack-coin-master-spin-android_GM406889139.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/roblox-rape-hack_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_002_off000032d2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32D2 24228 bytes
SHA-256: 5694a0932a6167a795d8ca0d2d55329ff489cc6ac68b68ccfdb96729aa936cc5
font_01_sfnt_off000069ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69AC 18172 bytes
SHA-256: ba55ace67aaa42a75d72a76423215630d067bde5e330a1763dcb3073f08e6856

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