Malicious PDF — malware analysis report

Static analysis result for SHA-256 a05e06f87302cec8…

MALICIOUS

PDF

36.6 KB Created: 2020-03-09 05:02:53 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4f612b7b09dc4d76899c141cb73eb9ee SHA-1: d9d911c722cd80d4e28bbb510a03f1335910ab09 SHA-256: a05e06f87302cec8618ee2c3583c386268956a17785e2e333714b307286c73de
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are hosted on domains that appear to be part of a link farm. The document body text, though partially obfuscated, mentions 'mail merge steps in ms word 2010 pdf', suggesting a lure to disguise the malicious intent. The primary heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, likely for SEO manipulation or to host further malicious content. 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://kinsley-walker-p-1.rominastiebenphotography.com/uploads/1/3/0/8/130814329/130814329.html#mail+merge+steps+in+ms+word+2010+pdf
    • http://www.cjmotorsports.us/uploads/1/3/0/9/130969500/5876588.pdf
    • http://petalstopins.com/uploads/1/3/0/4/130436125/4601218.pdf
    • http://nmediadigital.com/uploads/1/3/0/3/130323884/e073eb3f849a.pdf
    • http://barbellchiropractic.com/uploads/1/3/0/5/130551266/wirupuwife_pozazusa.pdf
    • http://rockpraxis.com/uploads/1/3/0/6/130603793/kojaxibixizisej.pdf
    • http://portpainting.com/uploads/1/3/0/4/130436162/sawasidatimebep.pdf
    • http://expertskauai.com/uploads/1/3/0/2/130288334/7815553.pdf
    • http://kupcar.com/uploads/1/3/0/8/130813135/bodamo-mufexifereb.pdf
    • http://mindfulengagment.com/uploads/1/3/0/2/130289638/4627539.pdf
    • http://bixbyhoco.com/uploads/1/3/0/2/130271185/gegozibudokefepas.pdf
    • http://wilsonhydronicsolutions.ca/uploads/1/3/0/6/130639439/3131753.pdf
    • http://townhousemarketing.com/uploads/1/3/0/4/130476091/b8f4600b17d1.pdf
    • http://shadowmistcats.com/uploads/1/3/0/5/130542860/pajaregobej-gafun.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_off0000661b.bin
8b16e5527cd9c4338e4936108f0055d2c38aceca5be375f76f8edc043ab17f83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x661B 8024 bytes

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