Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebfdd33cbc6663a2…

MALICIOUS

PDF

32.1 KB Created: 2020-04-11 02:21:36 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 41ca79624dbc0d1882eaba39496ab2c7 SHA-1: f8bbf1dedf09f1d2519b94fc273ea172e7f762a8 SHA-256: ebfdd33cbc6663a2e10f05cfeac975ff25dfa30fc534edbabf244d373f195a3f
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The document body is heavily obfuscated and contains some of the same URLs, indicating a potential lure to malicious content hosted on these external sites. No scripts were extracted, limiting the analysis of direct payload execution.

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://ndchair.com/uploads/1/3/0/6/130605216/130605216.html#12.+s%C4%B1n%C4%B1f+kar%C5%9F%C4%B1la%C5%9Ft%C4%B1rmal%C4%B1+dinler+tar
    • http://hoagiedsandwich.com/uploads/1/3/1/4/131453143/2661243.pdf
    • http://bluetecbeacons.com/uploads/1/3/0/4/130435578/79907.pdf
    • http://magicmakerstravel.com/uploads/1/3/0/5/130550890/301efdab6.pdf
    • http://gvhomesolutions.net/uploads/1/3/0/5/130589402/3930815.pdf
    • http://changermavie.net/uploads/1/3/0/3/130323592/7b2db6526fdef.pdf
    • http://magjphoto.com/uploads/1/3/1/1/131164136/nuboget.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_off00005256.bin
1e2e4a8c0d16097b0c99ca06d50edf89729affc43e04bdad17980fe981e1f39b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5256 9140 bytes

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