Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f4f9f6a166b84a…

MALICIOUS

PDF

36.1 KB Created: 2020-06-03 23:53:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ca7f93a0e31bdf0fb7df4a576530c9b SHA-1: 06850d4fb12ccbb0803b62846554e1c9f44250ca SHA-256: f2f4f9f6a166b84a31719896b443f1d3a544e4e23d869a32f10b62b38ec4062d
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a potential link farm. The document body contains text that appears to be metadata or garbled content, but the primary malicious activity is the mass embedding of URLs pointing to various domains.

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://charliemcmanus.com/uploads/1/3/1/0/131070301/131070301.html#cual+es+la+primera+condicion+de+equilibrio
    • http://maggietham.com/uploads/1/3/0/3/130324027/8672427.pdf
    • http://antique.ding2ding.com/uploads/1/3/0/5/130551967/afea4.pdf
    • http://hostmaster.christian-bachmann.info/uploads/1/3/1/3/131380811/e044c815827.pdf
    • http://massageatuniversityone.com/uploads/1/3/0/3/130313345/sobomosetilukug-bopadoxati-gojikibufo-javumumoz.pdf
    • http://shapeconservation.co.uk/uploads/1/3/0/7/130740592/6912860.pdf
    • http://dabeedesign.com/uploads/1/3/0/9/130969813/pidinapijipawobo.pdf
    • http://thesundayboys.org/uploads/1/3/0/7/130738722/c82c71a6b3b2.pdf
    • http://equineveterinaryacupuncture.com/uploads/1/3/0/7/130776241/vudasuzanu.pdf
    • http://theczarsfinefoods.oregontruffleoil.com/uploads/1/3/0/9/130969907/josuriwixasi.pdf
    • http://zenithenergylimited.com.au/uploads/1/3/0/6/130605440/4912721.pdf
    • http://theempris.emprisdurden.com/uploads/1/3/1/4/131453980/vofoz_wipujoz.pdf
    • http://centrobeautyessence.com/uploads/1/3/0/4/130488412/6036471.pdf
    • http://charliemcmanus.com/uploads/1/3/1/0/131070301/terms.html
    • http://charliemcmanus.com/uploads/1/3/1/0/131070301/dmca.html
    • http://charliemcmanus.com/uploads/1/3/1/0/131070301/policy.html
    • https://tujozoxi.files.wordpress.com/2020/06/guvifujil.pdf
    • https://motajixug.files.wordpress.com/2020/06/49031608576.pdf
    • https://divasojawi.files.wordpress.com/2020/06/bufemakoxozidedotub.pdf
    • https://regarat.files.wordpress.com/2020/06/85589164578.pdf
    • https://pofunidasuz.files.wordpress.com/2020/06/zodejikiriv.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_off000061a4.bin
ddcbf532262c87e6c3e8b35553afa96875e432c9abfdb14230830e46154e6b8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61A4 10184 bytes

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