Malicious PDF — malware analysis report

Static analysis result for SHA-256 a250b1dfd8c5c430…

MALICIOUS

PDF

45.0 KB Created: 2021-05-18 00:53:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ca1fbfa94ebd5a74754ff09d158ca2fc SHA-1: 4a9b9ef57db684ea047445c397983e503e6cd803 SHA-256: a250b1dfd8c5c4302441fb2c73d422727a95a389cde7749e50cace867b3117a1
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to hacking Roblox accounts and includes multiple embedded URLs pointing to potentially malicious content. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that at least one URL leads to known malicious infrastructure. The ML classifier also flagged the document with high confidence. The document body text, though partially obfuscated, reinforces the lure by mentioning hacking and providing URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/431946152/how-to-hack-into-someone In PDF document text
    • http://leagueforwomenrights.gr/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/clean-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-daily-free-cards_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/download-coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/minecraft-free-app_GM479516143.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_off000048f2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48F2 24612 bytes
SHA-256: 756aaaa64065e4abceb9770f949af1c60ee63ca89a4da643c178b59c8ea8fa64
font_01_sfnt_off0000818b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x818B 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00008b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3A 18912 bytes
SHA-256: bf4ecd0153dd3a330a8d8544a3db10b129edd23679e66a7dba01ca4f284b0ccb

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