Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6de5cb04c3ae559…

MALICIOUS

PDF

42.6 KB Created: 2020-04-11 03:22:17 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3eb6d938d369d4d6a7cb72aea748797b SHA-1: 9838da312ecf8a44b41de55cc8d32df98119d0dc SHA-256: a6de5cb04c3ae5592c614bdabb8b4d1f758674cddb9249dbb50715b55a5eaee6
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. These links are likely intended to redirect the user to malicious content or further stages of an attack. The document body text, though partially obfuscated, contains references to 'The matchmaker's playbook download', suggesting a lure to entice users to click on the embedded links.

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://podollangpis.devsite-1.com/uploads/1/3/0/6/130620326/130620326.html#the+matchmaker%27s+playbook+download
    • http://jacobshourd.com/uploads/1/3/0/5/130540699/gikolil.pdf
    • http://handstosounds.com/uploads/1/3/0/5/130589299/5200464.pdf
    • http://eldersemporium.com/uploads/1/3/1/4/131453232/lidisoso_pefogibopefer_vuvigeteluwojab.pdf
    • http://fermelechampslibre.com/uploads/1/3/0/2/130270762/xipanu.pdf
    • http://maidexpress.net/uploads/1/3/0/5/130589058/wowekisazikose_direrirukabune.pdf
    • http://ridingintherumbleseat.com/uploads/1/3/0/2/130272862/fe11faa5c.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00007317.bin
47f2287aef5429846d72335b4adfdfdcae42034dcea9e89ad66502c5e9fab064		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7317 25076 bytes
font_00_sfnt_off000053c8.bin
fc1a034b2adb9962311eb1dfe7f3cfabec05dfab11d3f8ab61890c58519131c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53C8 8220 bytes

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