Malicious PDF — malware analysis report

Static analysis result for SHA-256 af7fb14b7c0812db…

MALICIOUS

PDF

31.9 KB Created: 2020-05-27 10:47:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65fd5f7f20e899d7df3009bd059ee5a0 SHA-1: 40ea27720b673e0c9bfe21fb381ece54b15782b3 SHA-256: af7fb14b7c0812dbb225990bf0541f1b627dabf6d69c14aad856541c3ce6abe0
62 Risk Score

Malware Insights

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

The PDF document contains a lure promising an investment guide, which is a common social engineering tactic. It embeds multiple external links, identified by the PDF_SEO_LINK_FARM heuristic, that point to various PDF files hosted on different domains. These links likely serve to distribute further malicious content or lead users to 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://mta-sts.httpsgomagiccarpet.voyagerwebsites.com/uploads/1/3/0/9/130969212/130969212.html#the+only+investment+guide+you%2527ll+ever+need+download+free
    • http://homebirdinteriors.com/uploads/1/3/0/4/130477633/mivurisezose-dumoturoluxurub.pdf
    • http://maid.peteandlauren.com/uploads/1/3/0/2/130272072/9297994.pdf
    • http://gmagic.ca/uploads/1/3/0/5/130539408/741004.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_off00005135.bin
28cecbf93d76fb0fd58ba3fa252c1d176bc9d1db9a410d0581684cd8a2306eba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5135 10420 bytes

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