Malicious PDF — malware analysis report

Static analysis result for SHA-256 2900d54e8acd7286…

MALICIOUS

PDF

47.3 KB Created: 2021-05-15 06:02:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 92bb3e18253b58846c6a7e07d1daad7b SHA-1: d4c3958101f816580fdf7cf84dcd3a916128d042 SHA-256: 2900d54e8acd72869525ea112702eeab5a70e1d5b72b55e65ac07442d6d73f6a
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded links that point to known malicious redirector infrastructure, specifically targeting users with lures related to game hacks and cheats. The document body and extracted URLs reinforce this theme, suggesting an attempt to trick users into downloading further malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/hack-coin-master-site-rssing.com-game-hack In PDF document text
    • http://act.gr/images/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://act.gr/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://act.gr/images/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://act.gr/images/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://act.gr/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://act.gr/images/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://act.gr/images/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
    • http://act.gr/images/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • http://act.gr/images/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://act.gr/images/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://act.gr/images/coin-master-gift-hack_GM406889139.pdfIn PDF document text
    • http://act.gr/images/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://act.gr/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://act.gr/images/hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://act.gr/images/coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://act.gr/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://act.gr/images/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://act.gr/images/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://act.gr/images/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • http://act.gr/images/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004626.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4626 28076 bytes
SHA-256: 9ae071b073c17587336758d775680799d77ff227a247b39f3b98260cb2dbdb4e
font_01_sfnt_off0000842f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842F 7332 bytes
SHA-256: d811e0aca85f3b94c42cd1240eec68b8eb378f3d8be5e408d3f6abd0f11f834d
font_02_sfnt_off00009647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9647 18328 bytes
SHA-256: 07de35e017b3498320b231462ac397ae59ca2d27503cc9a48e7a5c4c16f0becc