Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6cf8e762e9c0f01…

MALICIOUS

PDF

47.3 KB Created: 2020-04-01 14:37:47 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 487e2c56d64186acf5eadac68a111bc7 SHA-1: 631bc45359a0112f7a027286415530c590c4cac8 SHA-256: b6cf8e762e9c0f01bcafa22bb65e0f501a8e2ea0698469b161b2405ddd10f5ef
62 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains references to a PDF and the authoring application, suggesting a lure. The primary purpose appears to be directing users to a vast network of websites, likely for SEO manipulation 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://shepherdwarrioronline.com/uploads/1/3/0/5/130588477/130588477.html#pathfinder+rpg+gamemastery+guide+pdf
    • http://culbertsonandcompany.com/uploads/1/3/0/6/130639852/525641.pdf
    • http://chrisramilo.com/uploads/1/3/1/4/131438641/9083809.pdf
    • http://greathealthforbusypeople.com/uploads/1/3/0/5/130550871/fekogowetalusig.pdf
    • http://cedarlanesucculents.com/uploads/1/3/1/3/131383264/9441382.pdf
    • http://denocos.net/uploads/1/3/0/4/130475990/pexosilodolugaba.pdf
    • http://detroitmobilenotary.com/uploads/1/3/0/9/130969114/juxegowufunir.pdf
    • http://jmssolucoesemmadeira.com/uploads/1/3/0/2/130288709/saduze-donakaki-tisizaximebizu.pdf
    • http://teresasmusz.com/uploads/1/3/0/7/130739254/d3f1fd09a853.pdf
    • http://globalsecurityinnovations-inc.com/uploads/1/3/0/8/130814189/246885.pdf
    • http://ps173q.com/uploads/1/3/0/7/130775363/6438703.pdf
    • http://phenixhomeimprovement.net/uploads/1/3/0/6/130603731/7264336.pdf
    • http://twokingslimousines.com/uploads/1/3/1/4/131452880/7794867.pdf
    • http://repulse-bay-garden.com/uploads/1/3/0/9/130969056/lavuf.pdf
    • http://monthlytoothtalk.net/uploads/1/3/0/6/130621628/6278252.pdf
    • http://dangithurts.com/uploads/1/3/0/6/130620956/kajidumaxaxokaf.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_off000091c3.bin
3acf06fb5005c3f38d93dee19d620aab196f07621aa11e855ac86a312a01fd25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91C3 7752 bytes

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