Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7b272a01f8fc42f…

MALICIOUS

PDF

34.2 KB Created: 2020-04-02 02:41:20 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6ac587fc27759d4bbdcbff6c2b397c76 SHA-1: b6cc294f07f7aa45edad4bb1f0417065df22bdf6 SHA-256: d7b272a01f8fc42fe7c41f566f49cb2d99825facd75da88ac599ccc2634af7f3
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO spam operation. The embedded document body text, though partially corrupted, contains a URL that also appears to be part of this link farm. The primary goal appears to be directing users to a large collection of external PDF files.

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://chelseecrutchfield.com/uploads/1/3/1/3/131381839/131381839.html#bohemian+rhapsody+guitar+tab+fingerstyle
    • http://apoaaxi.org/uploads/1/3/0/6/130621803/2d9df.pdf
    • http://laotzuquotes.com/uploads/1/3/1/3/131380279/2209738.pdf
    • http://tribelicious.com/uploads/1/3/1/3/131384153/e281bec3d0.pdf
    • http://jmdetailingenterprise.com/uploads/1/3/0/7/130776304/6255374.pdf
    • http://missabys-prek.com/uploads/1/3/0/8/130813632/e8f6a0d0a6.pdf
    • http://structuresbypremier.com/uploads/1/3/0/3/130323517/31e1a1cbfc0d.pdf
    • http://mikesvinyllettering.com/uploads/1/3/0/5/130540604/795c51a.pdf
    • http://treeplenish.com/uploads/1/3/0/3/130379485/5de7e28f7ea.pdf
    • http://victorvillefamilylawattorney.com/uploads/1/3/0/7/130775929/zizogikamusoj.pdf
    • http://gwinnettelite.com/uploads/1/3/0/4/130483678/314fe41b73.pdf
    • http://solutionsfocusconsulting.com/uploads/1/3/0/5/130545241/70d53.pdf
    • http://gemsbyjess.com/uploads/1/3/0/2/130289019/gidol.pdf
    • http://armoredsoul.org/uploads/1/3/0/7/130739505/mawutenalomunekem.pdf
    • http://cesc2000.com/uploads/1/3/0/2/130289096/vilisenat.pdf
    • http://my-uss.com/uploads/1/3/1/3/131378837/e2100c3.pdf
    • http://rightathomeinspections.org/uploads/1/3/0/8/130814219/wevurizigavali.pdf
    • http://bjrenovationproject.org/uploads/1/3/0/3/130324004/8f5c9ceed1993f.pdf
    • http://thespapalmcove.com/uploads/1/3/0/8/130874439/zirubu.pdf
    • http://lumaeretreats.com/uploads/1/3/0/5/130589144/sifefom.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_off00005eec.bin
0bfe0a45b90cc6e7eb6356f8a69b3fe9a27d9281e759076ed7fd8f29b9467b0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEC 7192 bytes

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