Malicious PDF — malware analysis report

Static analysis result for SHA-256 23e9d0c4b2cec37a…

MALICIOUS

PDF

42.9 KB Created: 2021-05-13 00:03:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 695d4fc15671fd679e7ae22b2a8997cf SHA-1: aafd7d04a38dd3db733bb788bb4e896f0cd95513 SHA-256: 23e9d0c4b2cec37a5b41b67f0531a7af9ae0dca31a53d657b324c9866ed15f3d
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs that lead to sites offering game cheats and hacks, indicating a lure for potentially unwanted or malicious downloads. The presence of a 'download button' heuristic further supports this, suggesting a social engineering tactic to trick users into clicking malicious links. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/www.coin-master-hack-apk-game-hack In PDF document text
    • http://zinicrom.com/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://zinicrom.com/images/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/coin-master-email-free-spins_GM406889139.pdfIn PDF document text
    • http://zinicrom.com/images/free-robux-net_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/roblox-sued_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://zinicrom.com/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/coin-master-free-spins-app-for-iphone_GM406889139.pdfIn PDF document text
    • http://zinicrom.com/images/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://zinicrom.com/images/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://zinicrom.com/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://zinicrom.com/images/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://zinicrom.com/images/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • http://zinicrom.com/images/minecraft-free-download-unblocked_GM479516143.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_off00004c09.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C09 25348 bytes
SHA-256: 33f44ae6b1d20e519c7069ad4de997907e4f916c4708b7ebdf3391d8a6746dd6
font_01_sfnt_off0000853d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x853D 18320 bytes
SHA-256: 277d4dc9d3da7fddf0bdac8681ef5ee2884fa92320bcf9e925637b910761595c

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