Malicious PDF — malware analysis report

Static analysis result for SHA-256 23107b73ec7072d0…

MALICIOUS

PDF

45.4 KB Created: 2020-03-29 07:29:36 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 927405c3bebea45e4765e09e8eeef9fb SHA-1: 41f3292e6a89ab6078f9b696709bf829e1cb73fc SHA-256: 23107b73ec7072d0a12114d3beb402e3c582294cfaa4bcbc25825deb8c76837f
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO spam or to direct users to malicious websites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a potential attempt to manipulate search engine results or distribute malware. The embedded document body text, though partially corrupted, contains a URL that aligns with this pattern. 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://webdisk.rodhillportraits.com/uploads/1/3/0/6/130639765/130639765.html#palabras+que+inician+con+qui+en+espa%C3%B1ol
    • http://definitionbrows.com/uploads/1/3/0/7/130739016/000168a249309.pdf
    • http://nevermoreacrespetrescueinc.com/uploads/1/3/0/7/130776889/aa758df913fba85.pdf
    • http://utuppercervical.net/uploads/1/3/0/5/130547024/rovobonimom.pdf
    • http://taxandaccpros.com/uploads/1/3/0/2/130273738/pikuroga.pdf
    • http://hckhealthcare.com/uploads/1/3/0/6/130604386/1301833.pdf
    • http://shesthesgent.com/uploads/1/3/0/9/130969502/fudejokavifivubiter.pdf
    • http://attheedgeoftheshield.ca/uploads/1/3/0/5/130545199/edaf0e4d5dbf5d0.pdf
    • http://rockthedam.org/uploads/1/3/0/5/130539267/wipap.pdf
    • http://dodgeballaustralia.com/uploads/1/3/0/7/130739883/fipubulorigef.pdf
    • http://daughterredeemed.org/uploads/1/3/0/7/130739655/459857.pdf
    • http://foto-simon.nl/uploads/1/3/0/4/130483512/loxixevuduto.pdf
    • http://www.goedkopebehangers.nl/uploads/1/3/0/7/130776536/2612044.pdf
    • http://thesapphireschool.com/uploads/1/3/0/3/130324136/xufivo_maxubiwov.pdf
    • http://root.dianelockward.com/uploads/1/3/0/6/130621394/pumuwuf-dikexu-muwuler.pdf
    • http://angelakhristinbrown.com/uploads/1/3/0/4/130435777/nuguxagi.pdf
    • http://www.thelowvisioncenter.com/uploads/1/3/0/7/130740490/cd6d16.pdf
    • http://www.ghaseg.com/uploads/1/3/0/4/130490461/dda811a53b.pdf
    • http://agbumdsalumni.org/uploads/1/3/0/6/130639235/8884088.pdf
    • http://twinindie.com/uploads/1/3/0/8/130874422/8fddfcf8d.pdf
    • http://www.reservations.awazetours.com/uploads/1/3/0/6/130604332/67f3b190.pdf
    • http://northforkinfo.net/uploads/1/3/0/6/130640048/kafovibu.pdf
    • http://webmail.thecatthatwouldntgoaway.com/uploads/1/3/0/7/130776680/1228731.pdf
    • http://blessvibe.com/uploads/1/3/0/5/130588437/mavonezod.pdf
    • http://sustainabilitygodsway.com/uploads/1/3/0/4/130436450/wuxokova.pdf
    • http://www.shop.daisyalexandriadesigns.com/uploads/1/3/0/6/130639690/7ec82a.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_off0000857a.bin
052b6863944356fe527daca114a44f17c83bb43374d0516e2d691d0f910761b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x857A 8736 bytes

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