Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6cabbcfc8a21d8f…

MALICIOUS

PDF

40.7 KB Created: 2021-05-15 00:33:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a4e286074b476f1a7d1f0ce94e4bd67a SHA-1: cb92bb3be21e4702e42b177d091e862989a1f924 SHA-256: d6cabbcfc8a21d8f260d74e9e60e436a26fd09cba6b017bf386a75bf0029c924
70 Risk Score

Malware Insights

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

The PDF document contains embedded text and a link that explicitly advertises a "Coin Master Hack" and provides a URL for downloading it. This link redirects to known malicious infrastructure, indicating a phishing or scam attempt. The presence of a call-to-action button further supports the lure. No scripts were extracted, but the malicious URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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-hack-version-3.3-2-game-hack In 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_off0000362f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x362F 27616 bytes
SHA-256: 53854168bc3a88b7af75871502930fb97ed353abf0d79650c182f9e1a8f01ccd
font_01_sfnt_off00007403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7403 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off00007da4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA4 18216 bytes
SHA-256: 85fbb5d6a76596e79f7a7321391a7393885aeff782a50940295d9e3682a9b399

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