Malicious PDF — malware analysis report

Static analysis result for SHA-256 be4cccd3c3afa29c…

MALICIOUS

PDF

43.2 KB Created: 2020-03-12 07:55:50 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 88a4a31e1e3542b2392db9f8c9bf77e7 SHA-1: b5712207d91514789fff936f74806ea234f9b79d SHA-256: be4cccd3c3afa29c03c5741513ffde3669e0bc508ca715e0d1f5ead717175c1b
62 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 to other PDF files hosted across various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The primary heuristic identified a mass external PDF link farm, suggesting the document's purpose is to redirect users to these numerous external resources. 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://hostmaster.4140designs.com/uploads/1/3/0/4/130436165/130436165.html#plate+and+frame+heat+exchanger+fouling
    • http://championtrikes.net/uploads/1/3/0/5/130543840/9954107.pdf
    • http://hostmaster.igoev-zentralschweiz.ch/uploads/1/3/0/8/130874565/tiweri_dedodopiguk.pdf
    • http://essentialsspapasadena.com/uploads/1/3/0/7/130739124/962cd544ea457a3.pdf
    • http://supersailingyachts.com/uploads/1/3/0/7/130740497/nesodor-lagununaluwu-tizozisu-nopevokuba.pdf
    • http://back2balancecaninemassagetherapy.com.au/uploads/1/3/0/4/130477234/7239513.pdf
    • http://tdsdproperties.com/uploads/1/3/0/8/130874339/6876494.pdf
    • http://northwestclubracer.com/uploads/1/3/0/4/130483305/5216565.pdf
    • http://www.gettingeventive.com/uploads/1/3/0/9/130969942/litixobumuf-woxuna.pdf
    • http://www.thinkforachange.net/uploads/1/3/0/5/130589334/ec24decdb69cd04.pdf
    • http://allthingscpr.com/uploads/1/3/0/6/130604256/7316281.pdf
    • http://mortensonconsulting.net/uploads/1/3/0/5/130541346/wupaxilexem.pdf
    • http://cpanel.theequineapproach.com/uploads/1/3/0/8/130814633/dizezib.pdf
    • http://southoakexpresslube.com/uploads/1/3/0/6/130620612/godikiwubiledanades.pdf
    • http://longlifetherapy.com/uploads/1/3/0/5/130552017/gijusoxonobo-labub.pdf
    • http://treetopsimplicity.com/uploads/1/3/0/6/130622120/mavagevutasi.pdf
    • http://studio-meraki-official.com/uploads/1/3/0/5/130539355/nidogedit.pdf
    • http://risingartistfestival.com/uploads/1/3/0/5/130539279/1028319.pdf
    • http://thestrawmaze.com/uploads/1/3/0/7/130739776/2985642.pdf
    • http://www.georgebroughampainting.com/uploads/1/3/1/0/131070096/216196.pdf
    • http://www.sandrahenein.com/uploads/1/3/0/4/130489418/dubijurezagegi.pdf
    • http://southeastee.org/uploads/1/3/0/2/130274091/zanadame.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_off00007db8.bin
c73c831b43fa82b2e1454b7bf4bfda89c9c4f1063cc910bf5e03ef138d717de8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB8 8784 bytes

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