Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cc5efbe98966a8f…

MALICIOUS

PDF

61.7 KB Created: 2020-05-21 06:11:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a7d5dfa668e3938143847b1c9986bc4 SHA-1: 6c345e4b3fcea778e4698033e599f7a7e7e174bc SHA-256: 4cc5efbe98966a8f0f67f042b987bb99bb8258a73fcbd6cba3c19c090f6901fd
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO manipulation or to distribute malicious content. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, with 'ppftransport.com' being a dominant host. The embedded URLs and the document body text, though heavily obfuscated, point towards a link farm strategy. 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://hannahevansdesign.studio/uploads/1/3/0/6/130603935/130603935.html#switched+at+birth+fanfiction
    • http://ppftransport.com/uploads/1/3/0/6/130604544/lomorevinupesefe.pdf
    • http://cedarhilldevelopersllc.com/uploads/1/3/0/7/130775902/518161.pdf
    • http://jamiejewellwalther.com/uploads/1/3/0/3/130379435/gepijijawu-bowubotoj.pdf
    • http://priscalia.com/uploads/1/3/1/3/131382118/4343604bd0152f.pdf
    • http://martyking.net/uploads/1/3/1/6/131636965/32c7fe72a646.pdf
    • http://pitchmovie.net/uploads/1/3/0/2/130287291/fcab12baf3484.pdf
    • http://chakrasavvy.com/uploads/1/3/0/7/130739105/zetujikawelux.pdf
    • http://kyuto.pt/uploads/1/3/1/4/131483090/6119125.pdf
    • http://irwinmusicacademy.com/uploads/1/3/0/5/130539048/levefovezal.pdf
    • http://moonshotatnacet.org/uploads/1/3/0/7/130739275/b22dff721ae4f.pdf
    • http://notourdayjobs.com/uploads/1/3/0/8/130814083/newetukironizegesite.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_off0000c235.bin
6d8f8188fab310ef7ba211352a0d60969e56ac4b4d2085e44037e7090484fc6b
pdf-font-stream PDF embedded font (sfnt) at offset 0xC235 12896 bytes