Malicious PDF — malware analysis report

Static analysis result for SHA-256 27df2af3dbdb97ec…

MALICIOUS

PDF

34.5 KB Created: 2020-05-31 12:06:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61bbe8a589750beddcc7c97955b139fc SHA-1: a13d2574a02e82fb5b48d32edf8b6f691ccd9bb8 SHA-256: 27df2af3dbdb97ec15b8f1d8c9500af643fcb52a1c3ba223ebfbc42b8e256cfd
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, identified as a PDF SEO link farm. The primary external URL points to 'http://redwillowproductions.com/uploads/1/3/1/4/131438829/131438829.html#stanley+parable+adventure+line'. This suggests the document is designed to drive traffic to a network of linked pages, potentially for SEO manipulation or to host 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://redwillowproductions.com/uploads/1/3/1/4/131438829/131438829.html#stanley+parable+adventure+line
    • https://popuxokogoju.files.wordpress.com/2020/05/niteninamav.pdf
    • https://jezalur.files.wordpress.com/2020/05/saxega.pdf
    • https://majobuvunaga.files.wordpress.com/2020/05/gilina.pdf
    • https://bugigos.files.wordpress.com/2020/05/borabokex.pdf
    • https://pokavin.files.wordpress.com/2020/05/vodunaraxawodot.pdf
    • https://tipaxoxabenu.files.wordpress.com/2020/05/14698396373.pdf
    • https://gabumanoru.files.wordpress.com/2020/05/gamutudelejoromezavadara.pdf
    • https://sisukone.files.wordpress.com/2020/05/37391225406.pdf
    • https://modunopowo.files.wordpress.com/2020/05/53041592657.pdf
    • https://xupapinir.files.wordpress.com/2020/05/95290016340.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_off00005b92.bin
4373c24ca34723013ad03c8460d2923088dddf07162a8ab5fae632f1bd33229b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B92 10276 bytes

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