Malicious PDF — malware analysis report

Static analysis result for SHA-256 414d58d29b1e3181…

MALICIOUS

PDF

42.7 KB Created: 2021-05-19 18:09:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5efc3a358821b3baf1234fe388665101 SHA-1: 56f7a36ccf6855ba943892161f1067ecf7271b62 SHA-256: 414d58d29b1e31812faa84075d5c0f060c8073ee0ff48154119060fff624e6a6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, masquerading as game hack generators and cheats. The primary redirector URL is https://netcdn.xyz/app/431946152/robux-generator-without-human-verification-2021-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector workflow, likely intended to lead users to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/robux-generator-without-human-verification-2021-game-hack In PDF document text
    • http://gc-sistemas.com.ar/images/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/master-coins-free_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/coin-master-free-spins-2021-app-download_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/rewards-roblox_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/static-moonactive-net_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/whats-robux_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/free-robux-mobile_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_003_off00004980.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4980 24516 bytes
SHA-256: b4339d7a7b92b4dac516470d945b1a1f355348b49eb240fa82ef92ec6b7997a0
font_01_sfnt_off000080c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C9 19464 bytes
SHA-256: f789a92eb4e3e9a572f5d65fac952670f1076f83a5b5b6da232cdf2fa887f2ed

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