Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e86bcc6eb692301…

MALICIOUS

PDF

43.3 KB Created: 2020-08-31 21:18:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a043d33c1bfa8b136f8b1f468df0751c SHA-1: 3ff0ea50c0238710b6243623c7884190369e0a42 SHA-256: 8e86bcc6eb692301ca69ba42c6100efabd3886eca2d8f03e2348597a9a75d972
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.me/wix?keyword=balantidium+coli+morfologia+pdf. While the document body contains garbled text, the presence of this malicious URL strongly suggests a phishing or redirection attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 2

  • 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.
  • 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://ttraff.me/wix?keyword=balantidium+coli+morfologia+pdf
    • https://cdn.shopify.com/s/files/1/0428/4959/9644/files/21878953445.pdf
    • https://cdn.shopify.com/s/files/1/0431/6590/9160/files/melepoxadajur.pdf
    • https://cdn.shopify.com/s/files/1/0440/4323/9589/files/rosome.pdf
    • https://static.usrfiles.com/ugd/3b0c81_af77d6e332f9457fa3a8b88ff76f92b9.pdf
    • https://static.usrfiles.com/ugd/73c254_61d2fef562734de0955d823cac463a98.pdf
    • https://static.usrfiles.com/ugd/3ceeb9_fb09011a7daf481c96f7038f5c86ba25.pdf
    • https://static.usrfiles.com/ugd/b8c837_d7e4032911c447a1b1c289acb84cc05b.pdf
    • https://static.usrfiles.com/ugd/b8c837_6121099b4b3845219d4bbc06114877e3.pdf
    • https://static.usrfiles.com/ugd/865d50_2a8ae307265f43229795490b865bf709.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eef.bin
8cb9439d070aac3ccc90178d1a514cc0f0ad31649197ffbe8dbefccfe1375654		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEF 5108 bytes
font_01_sfnt_off0000702d.bin
96ef0ad0ff8ffbabe71e51aa2022e135db709b260f2a77df7fb6ecc48098c8ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x702D 10120 bytes
font_02_sfnt_off000092b8.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92B8 4324 bytes

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