Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f2c5aba004e4ae7…

MALICIOUS

PDF

55.1 KB Created: 2020-04-21 04:52:14 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4be5f623f74c3a8a6d8c88ab81729de1 SHA-1: 14532ea22803fc152f19ec68118dcb9857acbcc5 SHA-256: 4f2c5aba004e4ae72591d73ebbe43789b56dc265443f736e9374300aab317a34
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though heavily obfuscated, contains references to 'Blog format template google docs' and includes one of the identified malicious URLs. This suggests a likely intent to drive traffic to a network of SEO spam or phishing sites.

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://forthecollectors.com/uploads/1/3/1/3/131398430/131398430.html#blog+format+template+google+docs
    • http://coconutsbeachresorts.com/uploads/1/3/0/4/130483963/nenikunafel.pdf
    • http://froggtoggsdirect.com/uploads/1/3/1/3/131380383/1041583.pdf
    • http://careercomp.net/uploads/1/3/0/7/130776737/pubezenezusupupor.pdf
    • http://graysgreenclubofamerica.org/uploads/1/3/1/4/131409167/1740154.pdf
    • http://mamaligned.com/uploads/1/3/1/4/131482919/8eaed62e41f73.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_off00008cbf.bin
fcac9dc27841c85f891447a250aa26929442a7b2e91f43d4a6ed18d66089e23e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CBF 10100 bytes
font_01_sfnt_off0000b0f5.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB0F5 2616 bytes
font_02_sfnt_off0000ba29.bin
8ebed6fa0e5729667143bc44a13206db791c5e38ca77a61661ed5ae5565d7fca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA29 16392 bytes

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