Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc6c5c27e93d6b5d…

MALICIOUS

PDF

35.2 KB Created: 2021-05-22 20:46:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 762153474ca90ae737e9e6c7ea659b9c SHA-1: b5a11c94d332911d28a7219bcddddf90b26cd33f SHA-256: cc6c5c27e93d6b5d840fed849ce6817b25c54217be31dd4ef4a6331397869985
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links and a call-to-action lure related to free game items and hacks, directing users to malicious redirectors. The primary malicious URL identified is https://netcdn.xyz/app/479516143/free-modded-minecraft-server-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristics indicate a malicious redirector workflow, likely intended to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9508

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-modded-minecraft-server-game-hack In PDF document text
    • http://fourieredu.cz/files/ckfinder/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/old-roblox-accounts-for-free_GM431946152.pdfIn PDF document text
    • http://fourieredu.cz/files/ckfinder/files/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031d1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31D1 24056 bytes
SHA-256: c6f78e77f4927b76be94d909f9ffb934b470caf628c7bad3958a9cb02cbc5300
font_01_sfnt_off00006901.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6901 18000 bytes
SHA-256: 088756902f929cbb0d1c0fa5d7f6f3d7dd891fd3cb3329064cb278e0751f8302

Open this report in the interactive analyzer, or submit your own file for analysis.