Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc8819802598fdfc…

MALICIOUS

PDF

40.1 KB Created: 2020-04-04 08:48:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 78b784d9b22b81d5488f717490e7a000 SHA-1: 80dddf232ca569de95c8622fab333476fd0c160b SHA-256: fc8819802598fdfc0f888d513d5136b3879c95f89996e78a4de550f3b09930b0
62 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to a critical heuristic firing for a 'PDF_SEO_LINK_FARM'. This indicates the document contains a large number of external links, likely intended for SEO manipulation or to redirect users to malicious sites. The document body contains text related to 'Adobe premiere pro cc 2019 win 7', suggesting a lure to attract users interested in software. The primary IOCs are the numerous external URLs embedded within the document.

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://journeytowanderlust.com/uploads/1/3/0/2/130272575/130272575.html#adobe+premiere+pro+cc+2019+win+7
    • http://angelasacademicblog.com/uploads/1/3/0/4/130488699/5008291.pdf
    • http://ultimatecustomecabinets.com/uploads/1/3/1/4/131408397/9858468.pdf
    • http://diversethumb.com/uploads/1/3/1/4/131483149/1993bd.pdf
    • http://hitfit24.com/uploads/1/3/0/5/130543462/9847989.pdf
    • http://judoc-cf.com/uploads/1/3/0/4/130483875/medurelepo-zidugi.pdf
    • http://littlemillcreek.net/uploads/1/3/0/5/130588749/1994544.pdf
    • http://binghaoy.com/uploads/1/3/0/6/130621892/tidib.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_off00005e15.bin
939dab9e487fd142027e60d487b75cce1fbe50c65a893084ece21e56683f06dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E15 9336 bytes
font_01_sfnt_off00008028.bin
77d43efd1564f19bbafe83a1c7582580d8477c80a85a1ab4b6b1d85c85dce8e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8028 5832 bytes

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