Malicious PDF — malware analysis report

Static analysis result for SHA-256 875ed9e66f22b657…

MALICIOUS

PDF

44.0 KB Created: 2021-05-14 14:35:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0497eb8b464054b177725a79c284a428 SHA-1: 59385c6012b5c15b39fe5c3d5bd8742eadea9387 SHA-256: 875ed9e66f22b657fd013241a25ee9ef2872097ab70977946f32867537479843
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that point to known malicious redirector infrastructure, specifically `https://netcdn.xyz/app/479516143/mcpe-1.16-game-hack`. The presence of a visual download button lure and the ML classifier's high confidence score further support the malicious nature of this document. The document body, though heavily obfuscated, contains URLs that likely lead to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 3

  • 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/mcpe-1.16-game-hack In PDF document text
    • https://koeltotaal.com/images/get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://koeltotaal.com/images/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • https://koeltotaal.com/images/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • https://koeltotaal.com/images/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://koeltotaal.com/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://koeltotaal.com/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://koeltotaal.com/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://koeltotaal.com/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://koeltotaal.com/images/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://koeltotaal.com/images/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • https://koeltotaal.com/images/clients-minecraft_GM479516143.pdfIn PDF document text
    • https://koeltotaal.com/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://koeltotaal.com/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://koeltotaal.com/images/www-roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://koeltotaal.com/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://koeltotaal.com/images/roblox-install-free_GM431946152.pdfIn PDF document text
    • https://koeltotaal.com/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://koeltotaal.com/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://koeltotaal.com/images/free-roblox-injector_GM431946152.pdfIn PDF document text
    • https://koeltotaal.com/images/coin-master-hacks-for-android_GM406889139.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_003_off00004974.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4974 29784 bytes
SHA-256: 80323840c014778d0fb514385cc67f73a37d40385df72c9f8b8020aeed355224
font_01_sfnt_off00008c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C02 17632 bytes
SHA-256: 4711a1543ea496a0f3d81235f335b2b9fd92f871e961f966e2047284bc2cd8dc