Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e38c7e574b745d7…

MALICIOUS

PDF

32.0 KB Created: 2020-06-14 22:05:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52615807c14134d9ca50d7f5b9f4227e SHA-1: eb225c85128908d57e000e7ad3f03c5aa9fb74fe SHA-256: 1e38c7e574b745d7a48f32e104c74dd840ac619267ea7af7191e8a114ccc3915
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The document body contains references to 'Quarkxpress 9 tutorials' and 'wkhtmltopdf', which appear to be decoys or part of the lure. 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://piel.com.co/uploads/1/3/1/6/131606197/131606197.html#quarkxpress+9+tutorials
    • http://grangeburn.scot/uploads/1/3/0/7/130738542/lobavokoxa_xudoresejega.pdf
    • http://521littlesewickleycreek.com/uploads/1/3/0/7/130740212/a3af72b78e72.pdf
    • http://sandstonelaw.com/uploads/1/3/0/6/130604590/2e647185c531527.pdf
    • http://kennedymob.com/uploads/1/3/0/4/130476736/morepalemabexemadat.pdf
    • http://toptierstoneveneer.com/uploads/1/3/0/6/130604549/2235785.pdf
    • http://outlook.microendeavors.com/uploads/1/3/1/0/131071063/a37e7df22aade.pdf
    • http://bluelabelproducts.net/uploads/1/3/1/3/131378968/27b9cd.pdf
    • http://centrocristianogetsemani.com/uploads/1/3/1/0/131070169/sizuvebo_zefojatoxadelu_rosezo.pdf
    • http://maggietham.com/uploads/1/3/1/0/131070247/82d00eee.pdf
    • http://mta-sts.mail.themodestshoptx.com/uploads/1/3/0/7/130775261/1427490.pdf
    • http://ashleykellysaxophone.com/uploads/1/3/0/5/130543855/811780.pdf
    • https://waxivakuxug870460021.files.wordpress.com/2020/06/xufowavefapetexosir.pdf
    • https://maxikolekeda.files.wordpress.com/2020/06/gabigowudewa.pdf
    • https://suwemolu.files.wordpress.com/2020/06/54091405172.pdf
    • https://wisetej.files.wordpress.com/2020/06/4665399484.pdf
    • https://fewogixaba.files.wordpress.com/2020/06/gobozasakukibuw.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_off00005335.bin
70c4c3a0d26207813402457aa8344d050dbf129097955a9834f682d7a7d6aead		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5335 9928 bytes

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