Malicious PDF — malware analysis report

Static analysis result for SHA-256 a56799a634e60214…

MALICIOUS

PDF

38.1 KB Created: 2020-03-28 11:03:18 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 474bff9ce8ed1e6a6a6e90fe91d41641 SHA-1: 3befbf8b8d5beeb15c9679c7fd693811f690d407 SHA-256: a56799a634e602140c269c696177fb651aa2c5e00e010eb6fd2395071b965be6
70 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which follow a pattern of numeric slugs and book-related terms, indicative of a link farm or SEO poisoning technique. The document body, though partially corrupted, contains URLs that appear to be lures for academic or business-related content. The primary intent appears to be directing users to a network of potentially malicious websites hosted on various domains.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bahamasaugustllc.com/uploads/1/3/0/5/130552106/130552106.html#organizational+behavior+robert+kreitner+angelo+kinicki
    • http://itsbluebird.com/uploads/1/3/0/3/130324248/xezigano.pdf
    • http://healinglightbodega.com/uploads/1/3/0/7/130740412/tajujuvipabovonol.pdf
    • http://monikagodsmark.com/uploads/1/3/0/4/130476496/6864040.pdf
    • http://rgmonarchlandscaping.com/uploads/1/3/0/4/130492441/a0cec388.pdf
    • http://www.raapremiereproperties.com/uploads/1/3/0/4/130490386/0c5db.pdf
    • http://rbc.consulting/uploads/1/3/0/6/130639581/d5825.pdf
    • http://www.rscbenches.com/uploads/1/3/0/6/130605113/lapuxasi-gikude-mikapofo-dusiraliboso.pdf
    • http://www.shelneygirlfriday.com/uploads/1/3/0/3/130323836/jubozogawimuwej_jufowotuno.pdf
    • http://dpchinesetea.store/uploads/1/3/0/6/130639945/jotoperix.pdf
    • http://deepdrillinginsights.com/uploads/1/3/0/7/130776047/tuxofutezukaraxik.pdf
    • http://armandolao.com/uploads/1/3/0/5/130545365/zenujejakeliwa.pdf
    • http://mybaby3d.com.au/uploads/1/3/0/5/130545485/koreze.pdf
    • http://musicsquared.net/uploads/1/3/0/2/130272850/gekaxinoriri.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_off00006a0c.bin
1b375b6048dc7d82e140d3976a89185b45562a217875f4663a748f5436061862		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A0C 8724 bytes

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