Malicious PDF — malware analysis report

Static analysis result for SHA-256 faf00fae63d5982c…

MALICIOUS

PDF

36.3 KB Created: 2020-06-05 09:53:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e0459fe63004625e0462ce15ba30c72 SHA-1: ca93188323c1fd04796d7cac3cd446d371912435 SHA-256: faf00fae63d5982c02614612584c18ec1dfd841407563c3fc0ab0bcf28ff96e1
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to domains that appear to be part of a link farm. The document body, though partially corrupted, suggests it is disguised as educational material. The primary heuristic indicates a 'PDF_SEO_LINK_FARM' which strongly suggests the intent is to drive traffic to potentially malicious or phishing sites. No scripts were extracted, limiting the analysis of direct payload delivery.

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://theaterspektakel.net/uploads/1/3/0/6/130604215/130604215.html#a+concise+introduction+to+logic+chapter+6.3+answers
    • http://mail.everylevelleads.com/uploads/1/3/1/4/131453465/jelibevabitir.pdf
    • http://alaorsoares.com/uploads/1/3/0/8/130814241/c2294.pdf
    • http://tommyriggs.com/uploads/1/3/1/4/131406258/9130193.pdf
    • http://olahomedaycare.com/uploads/1/3/0/2/130289620/4346257.pdf
    • http://ryanrmatthews.com/uploads/1/3/0/6/130604175/xamipo.pdf
    • http://theaterspektakel.net/uploads/1/3/0/6/130604215/terms.html
    • http://theaterspektakel.net/uploads/1/3/0/6/130604215/dmca.html
    • http://theaterspektakel.net/uploads/1/3/0/6/130604215/policy.html
    • https://zadolelunup311290781.files.wordpress.com/2020/06/favowugosexukoxuvubed.pdf
    • https://tirafeb.files.wordpress.com/2020/06/42669694179.pdf
    • https://nesutoxozeg.files.wordpress.com/2020/06/59245523001.pdf
    • https://xilejabugagu.files.wordpress.com/2020/06/wogelanezoxamo.pdf
    • https://fulivamata.files.wordpress.com/2020/06/48022582880.pdf
    • https://gezuduropen419134146.files.wordpress.com/2020/06/panesinukuropulav.pdf
    • https://renubuw.files.wordpress.com/2020/06/wodiwubedor.pdf
    • https://mipupoveretu.files.wordpress.com/2020/06/16691372515.pdf
    • https://bovumafinimi958902490.files.wordpress.com/2020/06/49525782957.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_off000060b5.bin
6de3b0a98253259b55d45d3402ee6013e22bf1414bd9e2d61fd8a9832f6b8ff0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60B5 10748 bytes

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