Malicious PDF — malware analysis report

Static analysis result for SHA-256 9005482aaa5699ce…

MALICIOUS

PDF

34.4 KB Created: 2020-06-07 03:56:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a4066d52b481a2c4b01290724dbbd6c SHA-1: db158d20a697ef5116b353789527258ffe81cc41 SHA-256: 9005482aaa5699ce3ca7120e5fdcc5d103bef10f7264d0a56109636432d7c478
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, many of which appear to be part of a link farm designed to manipulate search engine results or distribute further content. The document body itself is heavily garbled but contains some of the same URLs, suggesting a deliberate attempt to obfuscate the malicious intent. No scripts were extracted, and the primary malicious activity appears to be the distribution of these numerous external 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://chelsiharriseducationportfolio.com/uploads/1/3/0/6/130605504/130605504.html#a%25C5%259Fk+tutulmas%25C4%25B1+izle+full+hd+tek+par%25C3%25A7a
    • http://mandlaorganic.net/uploads/1/3/1/8/131856257/3828181.pdf
    • http://74-123-79-125.mgwnet.com/uploads/1/3/0/6/130639675/xofiberur_biporex.pdf
    • http://promotingpromote.com/uploads/1/3/0/6/130639831/96ad895db51d94c.pdf
    • http://rv2.dadgifts.us/uploads/1/3/0/8/130874352/5963928.pdf
    • http://pocketspleaser.net/uploads/1/3/1/3/131379518/rinemetupigux-jurap-diremevegejide.pdf
    • http://cpanel.kamtectools.com/uploads/1/3/0/2/130287930/pukalibavoredi_wikafupomezaror.pdf
    • https://nawefenumanu.files.wordpress.com/2020/06/28158242710.pdf
    • https://zunuxav.files.wordpress.com/2020/06/88486354091.pdf
    • https://rogosewilut.files.wordpress.com/2020/06/zojofapobejojoparudi.pdf
    • https://jesebenoj.files.wordpress.com/2020/06/gokexakoxapesi.pdf
    • https://siladeketo.files.wordpress.com/2020/06/83153692710.pdf
    • https://bazaroguj.files.wordpress.com/2020/06/femizevujeximopofobitav.pdf
    • https://nikuzeveda405669889.files.wordpress.com/2020/06/xepubapafabajegoboduruxel.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • https://www.youtube.com/watch?v=hxjHQZq550I
    • 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_off000057bf.bin
3568aa6689d57e869492a8436a68ef65ec33196f54c7b0ced4bcc866bd574d33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57BF 11752 bytes

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