Malicious PDF — malware analysis report

Static analysis result for SHA-256 f106593d493181f9…

MALICIOUS

PDF

33.4 KB Created: 2020-05-14 03:46:19 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9216aa4463e397d491c9ebd618426875 SHA-1: 6651add1e359f033d6f7dc8281e61a0b66b10d51 SHA-256: f106593d493181f98fe6613637b07e8cd49594e0adaa8b17f278dc45e8133cd5
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, many of which are hosted on unrelated domains and appear to be part of a link farm. The document body, though heavily obfuscated, contains text referencing 'Carfax free maintenance report', suggesting a social engineering lure. The primary intent appears to be directing users to malicious websites, likely for phishing or malware distribution, as indicated by the PDF_SEO_LINK_FARM heuristic.

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://heidihackford.net/uploads/1/3/0/7/130776872/130776872.html#carfax+free+maintenance+report
    • http://metoodartmouth.com/uploads/1/3/0/9/130969097/wibidigedijikijebi.pdf
    • http://littleladiesrecycling.org/uploads/1/3/1/3/131383546/2141229.pdf
    • http://danielsacupuncture.com/uploads/1/3/0/3/130379297/9252443.pdf
    • http://pestcontrolredlands.com/uploads/1/3/0/5/130551197/710f39a4aad1038.pdf
    • http://hsmshait.org/uploads/1/3/1/1/131164063/e053567920f69d1.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_off000057d4.bin
bd2f448318212b05a6766600f17de2e279ff506a000e9697db9e3d67ac1970f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57D4 10356 bytes

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