Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c97a94acd25a750…

MALICIOUS

PDF

33.5 KB Created: 2020-04-01 20:03:10 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 747c8afc49782f95d62a9885173219bf SHA-1: 5e5559cc2e2b3653c14b3980988d56e79e50468c SHA-256: 4c97a94acd25a75065f96ef03c54d36e17958782c5b8d7479d9417da834a9636
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique commonly used for SEO poisoning or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior. The document body contains a seemingly innocuous title related to 'Antigone study guide answers scene 1', likely a lure to attract search engine traffic. 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://yogaandasianbodytherapy.com/uploads/1/3/0/6/130604512/130604512.html#antigone+study+guide+answers+scene+1
    • http://gioielligigi.com/uploads/1/3/0/7/130775440/c0f1eae5.pdf
    • http://autosvelec.com/uploads/1/3/0/7/130738803/39af00b05815bd.pdf
    • http://armstrongcsi.com/uploads/1/3/0/4/130483329/vikegivarured.pdf
    • http://pkosinski.com/uploads/1/3/0/8/130874094/gagijimomokis.pdf
    • http://glynnpt.com/uploads/1/3/0/3/130324331/sovipimoboj.pdf
    • http://shopnoregrets.com/uploads/1/3/0/5/130588846/6496c79.pdf
    • http://afsa211.org/uploads/1/3/0/7/130775707/1792623.pdf
    • http://janaelindenportfolio.com/uploads/1/3/0/6/130640010/folunulaladizef.pdf
    • http://digital-human.org/uploads/1/3/0/7/130775016/remezatorulafiwi.pdf
    • http://maimachinery.com/uploads/1/3/0/6/130621180/pudom_vegejumig_tujuman.pdf
    • http://opunsezme.com/uploads/1/3/0/5/130589402/kexepidamamoxuse.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_off000059c1.bin
1bc11392c7513b2f2cf218b7a47d4625123cb8eb1907203b292561de9725badd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59C1 8188 bytes

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