Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9ed86a5af1cd1ad…

MALICIOUS

PDF

32.2 KB Created: 2020-06-22 05:58:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 475e20aea36291e1658d7d3596a57928 SHA-1: b6f3c777d4b905020a0895775047fbc30befdf4f SHA-256: a9ed86a5af1cd1add7681e2f336097902eb20e058c0129172e968abff69e51fb
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document is disguised as an owner's manual to trick users into clicking on numerous embedded links. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, likely for SEO poisoning or to distribute further malicious content. The embedded URLs point to various domains, suggesting a link farm or redirection infrastructure. No scripts were extracted, limiting the analysis of direct payload execution.

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://joeveltrimusic.com/uploads/1/3/1/3/131383207/131383207.html#2008+ford+focus+owners+manual
    • http://travisroske.com/uploads/1/3/0/3/130313564/a83595ee.pdf
    • http://asidunmadingxianjinbaijiale.br3h.com/uploads/1/3/0/5/130546183/42d345a7815ee8c.pdf
    • http://hostmaster.123art.it/uploads/1/3/0/5/130539940/3982513.pdf
    • http://vlandconstruct.com/uploads/1/3/1/6/131606762/3acb55.pdf
    • http://mx.hagerandhager.com/uploads/1/3/0/9/130969199/1cf62a8dc43b65.pdf
    • http://mawmaintenance.com/uploads/1/3/0/3/130323249/zoxenorere.pdf
    • http://purebreedbengalkitten.com/uploads/1/3/0/3/130323109/30bb49ff.pdf
    • http://munchandbagel.com/uploads/1/3/2/6/132681674/8122594.pdf
    • http://mail.teachenglishstepbystep.com/uploads/1/3/1/6/131637797/besizod.pdf
    • http://lindholm-family.rominastiebenphotography.com/uploads/1/3/0/7/130775724/919c045.pdf
    • http://bentonsfarmmachinery.co.uk/uploads/1/3/1/0/131070596/levumedamo.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_off0000438f.bin
fcc66aa61ad41f667d95f1ae188a7aeebea95b3342fc46ec16ba65f66c9ab505		 pdf-font-stream PDF embedded font (sfnt) at offset 0x438F 5388 bytes
font_01_sfnt_off000055bc.bin
8fd75651ce4c34e1d749c794cc8f6c85f4aba7604848250cf34804dc3897f141		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55BC 9044 bytes

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