Malicious PDF — malware analysis report

Static analysis result for SHA-256 49af9a9096a89783…

MALICIOUS

PDF

32.0 KB Created: 2020-03-20 13:40:27 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 74a37eadddeb068387e54c5f9217d10e SHA-1: 306b4d6803df99c1cfda5defbcfeeede79efbc40 SHA-256: 49af9a9096a897832a694697414d9cc4619cbec6922c9d955d2031e317ce0886
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are numerically or generically named and point to PDF files, indicating a link farm or SEO spam tactic. The document body, though partially corrupted, suggests a lure of an 'Admiral washing machine user guide'. The primary heuristic identified a link farm with 30 external PDF links, predominantly hosted on 'webmail.tedlucas.net'. This suggests the document's purpose is to drive traffic to these external sites, potentially for malicious redirection or further exploitation.

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://onecoopedchick.com/uploads/1/3/0/6/130639859/130639859.html#admiral+washing+machine+user+guide
    • http://webmail.tedlucas.net/uploads/1/3/0/2/130289641/gosen.pdf
    • http://www.dearborne-toronto.com/uploads/1/3/0/6/130621645/2920cdb.pdf
    • http://rugcleaningrochester.info/uploads/1/3/0/6/130603994/maxovulonajevo-powatomu.pdf
    • http://meliorsquashcourtmaintenance.com/uploads/1/3/0/3/130313670/4118670.pdf
    • http://printroom231.com/uploads/1/3/0/5/130551177/3080985.pdf
    • http://merrickfriends.info/uploads/1/3/0/5/130551369/c4e87.pdf
    • http://tambosuperfoods.xyz/uploads/1/3/0/2/130289679/kekupob.pdf
    • http://goodwordsnh.com/uploads/1/3/0/5/130546392/mokejozosu-bakex.pdf
    • http://dogfriendlybribie.com.au/uploads/1/3/0/2/130272587/fe818029.pdf
    • http://mx.climatechangecoffee.com/uploads/1/3/0/5/130543289/watoraz_pigaba_vomulegemoz.pdf
    • http://www.wabashmusiced.com/uploads/1/3/1/0/131071066/4729b7.pdf
    • http://www.barkofliferecords.com/uploads/1/3/0/5/130540352/c8c9095ca16bd82.pdf
    • http://ntlamattress.com/uploads/1/3/0/6/130603815/7298013.pdf
    • http://websiteseoshop.com/uploads/1/3/0/4/130489371/3162054.pdf
    • http://jumpstartyourhabits.com/uploads/1/3/0/2/130291591/f7a48df18dbd.pdf
    • http://4streets.org/uploads/1/3/0/2/130287493/dezirinogej-lojovat.pdf
    • http://groupedby.org/uploads/1/3/0/2/130289448/fawefomesen.pdf
    • http://dirafoundation.com/uploads/1/3/0/6/130620690/jolurumabu.pdf
    • http://americanpeerage.us/uploads/1/3/0/4/130488885/cca917.pdf
    • http://avpartsvault.com/uploads/1/3/0/6/130604543/timonufa.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_off00005870.bin
3379ac8c97b0fabb44ee42af495015c0b543605ad591f9f1ce23a4310f70aeab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5870 6512 bytes

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