Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fec2e0919109dc3…

MALICIOUS

PDF

39.1 KB Created: 2021-05-11 22:34:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e9db9841a3343c40d68e66c629ddafba SHA-1: b51a310288cb6264e7d38defd791368dd4521efa SHA-256: 5fec2e0919109dc300e6d4bdb826478b8c186c22df0a7f9b57a0b579119fa76f
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a malicious redirector link pointing to a download URL for 'Coin Master Hack Apk'. The document body also contains explicit calls to action like 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', reinforcing the lure. The embedded URL is the primary indicator of malicious intent, likely leading to the download of a second-stage payload.

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-apk-3.5-18-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_off0000320d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x320D 25296 bytes
SHA-256: b0ae0064f012a6e5312af93dfde17bc5d9847e23dbedd85bf22ad25806140082
font_01_sfnt_off00006c7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7F 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00007631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7631 18584 bytes
SHA-256: 713a301d70f86388f4bd8aea956833d7b06d6a967d700e365eefcc159a0c525c

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