Malicious PDF — malware analysis report

Static analysis result for SHA-256 92d8a92683a24a89…

MALICIOUS

PDF

34.3 KB Created: 2020-06-09 01:20:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79a803f1a24fe126ba7c9b8f787c834e SHA-1: be5896bdb4b8e93e474212a6929243ddfee54729 SHA-256: 92d8a92683a24a89a504f492e7bcbb008a7d924d5e1c45a6eab4865ddcd3cd50
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The embedded document body text also contains URLs, including 'http://beginagaints.net/uploads/1/3/1/8/131856235/131856235.html#dyned+son+s%25C3%25BCr%25C3%25BCm+indir'. This suggests the document is designed to redirect users to a network of linked pages, likely for SEO spam or to distribute further malicious content. 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://beginagaints.net/uploads/1/3/1/8/131856235/131856235.html#dyned+son+s%25C3%25BCr%25C3%25BCm+indir
    • http://ashtonhiggins.com/uploads/1/3/0/5/130589442/ca135c3.pdf
    • http://businessgoamerica.com/uploads/1/3/0/6/130604523/9108977.pdf
    • http://zonika.international/uploads/1/3/1/4/131453293/xopuloraralit.pdf
    • http://rugcleanerspro.com/uploads/1/3/1/6/131637143/8f43fa798e744c.pdf
    • http://durandleadership.com/uploads/1/3/0/7/130740356/1c4e4c25cc0d5d.pdf
    • http://relentlessethos.com/uploads/1/3/0/5/130589338/fa01affdb7001b1.pdf
    • http://innovacionpublicitariamagenta.com/uploads/1/3/1/4/131438362/xinaxa.pdf
    • http://newvisionsecurity.net/uploads/1/3/0/6/130620491/pizoselibetezerag.pdf
    • http://cobrastudies.com/uploads/1/3/0/5/130551472/f9acbaf0112b3.pdf
    • http://bellemeadedentalcenter.com/uploads/1/3/1/4/131453174/b05981dc9936e34.pdf
    • http://lizreinertson.com/uploads/1/3/1/3/131383726/dogoguwutuguluv.pdf
    • https://pidunatuji.files.wordpress.com/2020/06/tenapen.pdf
    • https://zapokowivuz.files.wordpress.com/2020/06/89738447708.pdf
    • https://zowidunu.files.wordpress.com/2020/06/kumawutupozolixawavudoxut.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_off00005925.bin
d8e176f7fa2e533d8150b04c0c71c18c87a476feb84bc0ae6faedeb92d1f19f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5925 11384 bytes

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