Malicious PDF — malware analysis report

Static analysis result for SHA-256 430157ae9b08261e…

MALICIOUS

PDF

42.2 KB Created: 2020-03-23 07:46:08 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4235e70c8d580dc0a4517c74596ff2aa SHA-1: bf59fa2292e9ab4890844d4c95cd61623bd938aa SHA-256: 430157ae9b08261e27a59cb7a7a71034546be6966027521534fadd72288d602b
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links pointing to various domains. The heuristic 'PDF_SEO_LINK_FARM' indicates that this is a link farm, suggesting the primary purpose is to drive traffic to these external resources. The document body, though malformed, contains a URL that aligns with the detected link farm behavior. 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://cma458.com/uploads/1/3/0/5/130589202/130589202.html#nursing+diagnosis+for+severe+diarrhea
    • http://epicvegasadventuretours.com/uploads/1/3/0/5/130588205/tuvareli.pdf
    • http://rasconsultingfirm.com/uploads/1/3/0/6/130603955/bimutipigabix.pdf
    • http://pepperkornet.no/uploads/1/3/0/4/130489398/najopolilibifefon.pdf
    • http://byshannonmalone.com/uploads/1/3/0/2/130274151/limebimit-fowumirezazube.pdf
    • http://gatheringnations.org/uploads/1/3/0/4/130436298/difawogofijula_gumiwibe.pdf
    • http://calldavid.com/uploads/1/3/0/7/130739570/gulararitowo.pdf
    • http://paravelfilms.com/uploads/1/3/0/2/130291827/wugavam.pdf
    • http://laurendanhof.com/uploads/1/3/0/2/130289428/4731852.pdf
    • http://astrologyandcrystallighttherapy.com/uploads/1/3/0/6/130620716/b939479ebaf.pdf
    • http://ipodchurch.com/uploads/1/3/0/9/130969406/8660eafbf57.pdf
    • http://derjusa.com/uploads/1/3/0/6/130620788/1baece9b3f448b.pdf
    • http://tmgorgeous.com/uploads/1/3/0/5/130543784/67740294691.pdf
    • http://completecarechiropractictables.com/uploads/1/3/0/3/130312920/luvakasevidoput_nodinokip_fepidowofij.pdf
    • http://jayakartabali.com/uploads/1/3/0/8/130874678/5bc6868c8c60.pdf
    • http://healthidea4u.com/uploads/1/3/0/7/130739308/b03c716aea.pdf
    • http://www.ronwaltonactor.com/uploads/1/3/0/6/130621523/pemalexonaj-zibuzorop-juviromafodoso-motodazifivide.pdf
    • http://www.my-auto-max.com/uploads/1/3/0/8/130873997/xikuda_fomubimilek_jalorisobano_nopaw.pdf
    • http://cadencehealth.co.uk/uploads/1/3/0/8/130873867/301c928d12fb7a2.pdf
    • http://thekookas.com/uploads/1/3/0/6/130639583/1159252.pdf
    • http://www.jcquenguan.pixel30.com/uploads/1/3/0/8/130814674/paleluvasumekakorir.pdf
    • http://hostmaster.stylisteschantaljette.com/uploads/1/3/0/5/130543133/5297625.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_off00007e05.bin
c6f7990a1ff16feed8a751a077cb1cd6d2c04dd947346c991e4e12329dab1386		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E05 7540 bytes

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