Malicious PDF — malware analysis report

Static analysis result for SHA-256 484d09f9f4e12dce…

MALICIOUS

PDF

37.1 KB Created: 2021-05-14 05:30:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ebcfee2c3dfdfa029e9c6ea7efbf79ff SHA-1: 68cd9a7611b6feb1c340b5ac5ad6f5ae5a5188ac SHA-256: 484d09f9f4e12dce63ef673ecb5d334e99c1cb01b7f2faf9b29cd21cb2a9b717
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a clear call-to-action disguised as a download button, directing users to a URL associated with known malicious redirector infrastructure. The document body text explicitly mentions 'Coin Master Hack Game Download' and 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', reinforcing the lure. The embedded URL is the primary indicator of malicious intent, likely leading to a further stage of infection.

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/www.coin-master-hack-game-download-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_off000033c4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33C4 25200 bytes
SHA-256: e25700f9eacce4b21878073e975337c98f4580ee2675e9ce170ed34367a5140e
font_01_sfnt_off00006e2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2B 18820 bytes
SHA-256: 5a93622875b94ed573f651c4b4836367bd470e11c931ee03acbceb7195bbdd22

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