Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5fa376ec3a1a139…

MALICIOUS

PDF

33.3 KB Created: 2020-04-13 08:08:05 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7cfc1aad3eb45b6b90cee0bf68cc9a2e SHA-1: 43602183067b3a2f0957351769433434cb414d1f SHA-256: e5fa376ec3a1a139c450907185ca6a81520a450e408fdb15169e7922353858a0
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. These links are likely part of a link farm or redirection scheme designed to drive traffic to malicious or spam content. The document body, though heavily obfuscated, contains references to a 'sea ray boat parts catalog' and the wkhtmltopdf generator, suggesting a lure to disguise the malicious intent. 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://hccpbl.org/uploads/1/3/1/4/131437513/131437513.html#sea+ray+boat+parts+catalog
    • http://youfixcampaignfinance.org/uploads/1/3/1/3/131398154/1705963.pdf
    • http://saltysoulfishingapparel.com/uploads/1/3/1/0/131071157/1303703.pdf
    • http://partymoscato.com/uploads/1/3/0/8/130813398/6a9a5e0a825da38.pdf
    • http://ablackeyedsusan.com/uploads/1/3/1/1/131164435/pewev-gonakiwawasapa-pafikuxunami.pdf
    • http://backyardist.com/uploads/1/3/1/4/131407183/96da73ad9e4.pdf
    • http://cpeessentials.com/uploads/1/3/0/5/130590671/xotuwuz.pdf
    • http://tltalk.com/uploads/1/3/0/9/130969561/3592284.pdf
    • http://whiteashes.net/uploads/1/3/0/7/130776295/nirimef.pdf
    • http://alongino.net/uploads/1/3/1/4/131438114/dimeribonet.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_off00005958.bin
335ae776efbd85645b0b5efa15fbac1ea0b61162c30c1dd1fc40bfe14f384e68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5958 7964 bytes

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