Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8dee29e62c8816d…

MALICIOUS

PDF

36.9 KB Created: 2021-05-16 13:55:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b38d781b739b0e143b453fcdbb08fd77 SHA-1: 7b16423a2b4ede99bd57b81cf9b8b496d04d12c2 SHA-256: e8dee29e62c8816daf6cedcc9a142e9cc6510418ccf1eb65d7e6f0b88ac4f124
70 Risk Score

Malware Insights

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

The PDF file contains embedded text and a link that strongly suggests a lure for a game hack. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that the embedded URL leads to known malicious redirector infrastructure. The presence of a 'download button' heuristic further supports the social engineering aspect of this attack. The file likely attempts to trick the user into downloading and executing a malicious payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/coin-master-3.4-6-hack-game-hack In 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_off000034ba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34BA 25920 bytes
SHA-256: af51e155ae9f218788251fe1dad15ecb51b4547ee429acedef8bc2305a8ae705
font_01_sfnt_off00006f45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F45 18188 bytes
SHA-256: 417d22065da81414d5b8a7662938c361df9383972de83decc4a47860b2c9c40e

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