Malicious PDF — malware analysis report

Static analysis result for SHA-256 cec2fb9a6a671c36…

MALICIOUS

PDF

44.4 KB Created: 2020-03-09 09:46:42 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 52850533c0dcf2c6245f9d4d111b0451 SHA-1: d237db70fa80575bbe81abdefaf146be78a5cc73 SHA-256: cec2fb9a6a671c365da99bb1b00d12c03c76ee5e2d2cc9efa1c97fc4bc4aa137
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body text, though partially corrupted, contains references to URLs that are also present in the list of extracted URLs. This suggests the primary function of this PDF is to redirect users to a network of websites, likely for SEO spam or to host further malicious content.

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://i05g5.salon225.com/uploads/1/3/0/5/130543045/130543045.html#rpn+fmea+scale
    • http://bestkidsmentoring.org/uploads/1/3/0/5/130589373/lavapix_dufawijamuso_liluwuvagure_wajonete.pdf
    • http://www.butcherknives.us/uploads/1/3/0/6/130639458/fixanupalulaxu.pdf
    • http://kohltechwindows.com/uploads/1/3/0/7/130739129/warometa.pdf
    • http://www.shannonglover.com/uploads/1/3/0/7/130740129/f6f2345.pdf
    • http://natethehitmaker.com/uploads/1/3/0/2/130287394/1193c54d4da2.pdf
    • http://knit1chicago.com/uploads/1/3/0/6/130605273/4c3b6d53bb55d.pdf
    • http://munchandbagel.com/uploads/1/3/0/6/130604850/falijag.pdf
    • http://beatexpansion.com/uploads/1/3/0/7/130776076/9915013.pdf
    • http://skilledmanagers.com/uploads/1/3/0/5/130544131/2eb4f.pdf
    • http://actingcoachlasvegas.com/uploads/1/3/0/6/130640125/4742b5bf2e8e8.pdf
    • http://apapainting.com/uploads/1/3/0/5/130588574/8ce5a3efc96.pdf
    • http://ki5fao.com/uploads/1/3/0/5/130590561/nulinopifuzilo.pdf
    • http://consenvest.com/uploads/1/3/0/2/130287553/acfd5a2995d2ee.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_off00006f3a.bin
5fcab67d3eac3a64893c318cfdb11314056de8f8098ba3c5cf5e70e86e3af73d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3A 7980 bytes
font_01_sfnt_off00008e0a.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E0A 16204 bytes

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