Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d837dae856e107f…

MALICIOUS

PDF

37.1 KB Created: 2020-06-05 02:10:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7187909e793d7b27cf79ebdce19dfdb6 SHA-1: bea522fce24330e99b5e28a74905c743c73b2485 SHA-256: 7d837dae856e107f68aa67e5f802fef7cc43d3b9fd6715016a2cb1eb83eecdc0
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or a distribution point for malicious content. The document body itself is largely unreadable but contains references to 'managing for dummies pdf' and the wkhtmltopdf application, which may be a 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://scottsdalerealtor.co/uploads/1/3/0/7/130739919/130739919.html#managing+for+dummies+pdf
    • http://mta-sts.mail.namespaceconsulting.com/uploads/1/3/0/6/130621613/7938814.pdf
    • http://klothesthatrockandroll.com/uploads/1/3/0/8/130874217/6808978.pdf
    • http://icwakanda.com/uploads/1/3/1/4/131437298/vapaka.pdf
    • http://albuquerqueweddingprofessionals.com/uploads/1/3/0/8/130874156/migatof.pdf
    • http://bubblesandbarscompany.com/uploads/1/3/0/4/130483417/peguvebolumad-govuwefogadizu.pdf
    • http://mslux.net/uploads/1/3/0/2/130289205/mefakusavamano.pdf
    • http://infinitycentralescorts.com/uploads/1/3/0/8/130873846/padukibijox.pdf
    • http://blissislandfushion.com/uploads/1/3/0/7/130776447/pixuf_mirojamekife_vujaw.pdf
    • http://autodiscover.kuduroofing.com/uploads/1/3/0/7/130739919/sogil.pdf
    • http://lovedanceyogarelax.com/uploads/1/3/0/4/130436165/tapitimoribot.pdf
    • http://clearviewrentalproperties.com/uploads/1/3/1/4/131453031/mibar-suseziz.pdf
    • http://cpcontacts.infortifiedglobal.com/uploads/1/3/0/5/130588240/aef730091da4.pdf
    • http://scottsdalerealtor.co/uploads/1/3/0/7/130739919/terms.html
    • http://scottsdalerealtor.co/uploads/1/3/0/7/130739919/dmca.html
    • http://scottsdalerealtor.co/uploads/1/3/0/7/130739919/policy.html
    • https://xalekivajev.files.wordpress.com/2020/06/wofejowixopalesiwizaki.pdf
    • https://bitamubopin.files.wordpress.com/2020/06/kuguvozin.pdf
    • https://sudizixo.files.wordpress.com/2020/06/52763385366.pdf
    • https://kugebimik.files.wordpress.com/2020/06/ridakebinixeke.pdf
    • https://mavuwepezigi.files.wordpress.com/2020/06/rirorenotikox.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_off000066f6.bin
452e87eb1311b87a5870e4e678c1be74e438b5be5bffb36aa89b42a70f89cb3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66F6 9816 bytes

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