Malicious PDF — malware analysis report

Static analysis result for SHA-256 53c31b949f4073f2…

MALICIOUS

PDF

36.9 KB Created: 2021-05-23 04:39:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a556945fe18626e866abed1cedf37aa6 SHA-1: ecc95af6ffffc613ac713662b75380075a8f5b2f SHA-256: 53c31b949f4073f2959e6b6b18c0e33346160a3fec05f59e421499355278c417
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks or generators. The document body and heuristics indicate a lure to click these links, likely leading to further malicious content or downloads. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-hosting-game-hack In PDF document text
    • http://picuruta.com.br/images/minecraft-education-free_GM479516143.pdfIn PDF document text
    • http://picuruta.com.br/images/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://picuruta.com.br/images/minecraft-esp_GM479516143.pdfIn PDF document text
    • http://picuruta.com.br/images/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://picuruta.com.br/images/youtube-how-to-get-free-robux_GM431946152.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_off0000358f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x358F 25016 bytes
SHA-256: 6ecc8b574de5e643ecd88cc3fdc78d87ce302f45fa7d9ede4c4d2350c94c3e9c
font_01_sfnt_off00006f08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F08 18284 bytes
SHA-256: 4ae19380f71872a59bca81a6826a2f1ac99dae3e110f9987d961b4518a9677d8

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