Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d028604268111a0…

MALICIOUS

PDF

44.1 KB Created: 2021-05-15 07:20:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: afef0a5d990798a1b85f4f74ecee9d5f SHA-1: 700a7a42e727a6a1c57fdabb333df6eddb6def15 SHA-256: 1d028604268111a0802a81868584ac6d0828e10033b212ce4f9d035696e3572f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirector infrastructure, specifically promoting "free generator / game hack" lures. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-hair-roblox-boy-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's designed to redirect users to potentially harmful content, likely as part of a phishing or scam campaign.

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/431946152/free-hair-roblox-boy-game-hack In PDF document text
    • http://linde-erbach.de/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-freebies_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/mcpe-optifine_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • http://linde-erbach.de/images/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://linde-erbach.de/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://linde-erbach.de/images/free-spins-and-coins-blogspot-coin-master_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004713.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4713 24500 bytes
SHA-256: 3a6cea391fd6f161add21f61089f0e0fbd2327b625177dcf314e38383b53c46b
font_01_sfnt_off00007f57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F57 2820 bytes
SHA-256: 96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
font_02_sfnt_off000088f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88F8 18476 bytes
SHA-256: 342c800fef319d477b03ab518beae0bffc424861c275c3bcc7706f7950f542c9

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