Malicious PDF — malware analysis report

Static analysis result for SHA-256 affc50de212d9006…

MALICIOUS

PDF

30.3 KB Created: 2020-04-16 04:15:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7c3beacc39cb7d0434a95ebdc56cc6fc SHA-1: 6c181e957556151ae0cd964d7370758e2464a310 SHA-256: affc50de212d9006d5db27f22ec8601756bcba953e46d821630ee345f3e4ae7a
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection strategy. The document body also contains a URL that matches one of the embedded links. No scripts were extracted, and the primary malicious activity appears to be the distribution of these links.

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://scoopsintheloop.com/uploads/1/3/0/7/130776474/130776474.html#bandcamp+er+album
    • http://polka-dots.dk/uploads/1/3/0/8/130874055/6157650.pdf
    • http://thefounderscoffee.net/uploads/1/3/1/0/131070872/tomazobi.pdf
    • http://truedeflab.com/uploads/1/3/1/4/131482962/9163773.pdf
    • http://alovethatlasts.net/uploads/1/3/1/4/131453007/baperop.pdf
    • http://yesitskami.com/uploads/1/3/0/6/130620519/9787267.pdf
    • http://afsanehkhoramshahi.com/uploads/1/3/0/4/130476491/lowopitora.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003fdd.bin
abafe01f25680bf06a6b9f7c00ed5e268b09bd5706765dd7f07ae74a164073ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3FDD 6388 bytes
font_01_sfnt_off00005945.bin
fc0bcc9d08d908b8b1287d0ab2df4e3a5be78b1d1690d8efe3ff9d2c54ab5679		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5945 16064 bytes

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