Malicious PDF — malware analysis report

Static analysis result for SHA-256 597f6c847872ddd6…

MALICIOUS

PDF

37.7 KB Created: 2020-03-26 11:50:10 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 76c4d8ac2fe57e80f84d7a245105932f SHA-1: d39c5a05a37554c5b3c16f4f46b616ac7c6525d2 SHA-256: 597f6c847872ddd6c32f8623916d1841f53ada6baff682c386a8d8ef91198889
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded 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 contains garbled text and some of the extracted URLs, indicating a potential lure or attempt to disguise the malicious intent. 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://weddingflowersbydesiree.com/uploads/1/3/0/6/130620609/130620609.html#is+ecfmg+certificate+valid+indefinitely
    • http://mariascleaners.co.uk/uploads/1/3/1/1/131164016/luwumalegivematabo.pdf
    • http://dogtalephoto.com/uploads/1/3/0/8/130813848/580220.pdf
    • http://www.adriannaelizabethphotographyandmakeupartistry.com/uploads/1/3/0/8/130813100/016406fe97.pdf
    • http://neptuneturning.com/uploads/1/3/0/6/130621333/90f210a.pdf
    • http://kptranstaniebusy.pl/uploads/1/3/0/6/130605255/fefataditakoja_ninudikeveke.pdf
    • http://levelupmin.com/uploads/1/3/0/8/130814083/8940564.pdf
    • http://shadyhillskennel.com/uploads/1/3/0/4/130435600/694959.pdf
    • http://aubreyswarriorsfoundation.org/uploads/1/3/0/6/130639336/c7719ccb1f9a029.pdf
    • http://greenbeltcdc.com/uploads/1/3/0/5/130589146/ef57568.pdf
    • http://negotiateconsulting.com/uploads/1/3/0/4/130435982/ginexodavowike.pdf
    • http://spanawaysheds.com/uploads/1/3/0/7/130739845/7936814.pdf
    • http://doxies-vintage-jewelry.com/uploads/1/3/0/5/130551399/ginaxojutogaze.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_off00006857.bin
d4e594097c028f9d180d6063ab1f7a2a88a2c0f473a8df2e0c83e236ee892508		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6857 8876 bytes

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