Malicious PDF — malware analysis report

Static analysis result for SHA-256 b41a01a16b1d1319…

MALICIOUS

PDF

30.6 KB Created: 2020-05-15 01:53:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46b2350ea7a7dd2941673f6ef2573ad6 SHA-1: bb5cc38d414e47c7a005550a7ab7eb022bcb0bd3 SHA-256: b41a01a16b1d1319bc6bdbdfbe9fa5e86ca7204fa618b35d03076f766f471369
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified as a "PDF_SEO_LINK_FARM" heuristic. The document body text, though partially corrupted, mentions "Fixed cell reference google sheets" and includes several URLs that appear to be part of a link farm designed to attract traffic. These links likely lead to malicious content or phishing pages. No scripts were extracted from this sample.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://maeganprovan.com/uploads/1/3/1/3/131384333/131384333.html#fixed+cell+reference+google+sheets
    • http://wildcat-wifi.com/uploads/1/3/0/4/130491181/7376173.pdf
    • http://kingdombooking.org/uploads/1/3/1/4/131483020/9360469052536a.pdf
    • http://thefoundationfornaturalhealing.com/uploads/1/3/0/8/130874316/ketafaxoru-zekatise-xofanewegipez.pdf
    • http://leadership-consciousness.com/uploads/1/3/1/3/131398094/75613cb7a53158.pdf
    • http://jheft.com/uploads/1/3/0/6/130603873/e86db2c14.pdf
    • http://johndcoates.com/uploads/1/3/0/8/130874079/a57a8025493e42d.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e5b.bin
f5bfbc2de0fd8c1c7b1e13ca013c169bfbdb6786ed3a9aec55e422541e598bf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E5B 9732 bytes

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