Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ada1abcfca02142…

MALICIOUS

PDF

41.4 KB Created: 2020-03-27 09:22:59 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8cf40753b2e1bb6821ba6a9800826526 SHA-1: 206beca6d9d0c8958c1ca5796b79ffab7db1832e SHA-256: 3ada1abcfca02142b95cda6daf5857e2316d09f1ccbc0df98dba3270d83a96ed
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 to other PDF files hosted across numerous domains. This behavior is indicative of a link farm or SEO manipulation tactic, potentially used to distribute malicious content or improve search engine rankings for harmful sites. No scripts were extracted, and the document body is largely unreadable, making it difficult to determine the exact payload or intent beyond the link distribution.

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://esnorte.com/uploads/1/3/0/5/130589220/130589220.html#clasificacion+de+herramientas+manuales+pdf
    • http://sirenalpha.com/uploads/1/3/0/6/130639790/5b11ad5743.pdf
    • http://heathcoteandherran.com/uploads/1/3/0/7/130740143/konaw_rusapep.pdf
    • http://v-on-shenton.net/uploads/1/3/0/5/130539101/6fe172ef8b3b.pdf
    • http://valedetoxclinic.com/uploads/1/3/0/5/130590036/d525c339de.pdf
    • http://www.truecrimeshirtclub.com/uploads/1/3/0/2/130273573/zijotesajobuje.pdf
    • http://www.silverdragoncrystals.net/uploads/1/3/0/5/130588187/givomo_lefesixozugo_zexanenojag.pdf
    • http://www.magicalgirlstarot.com/uploads/1/3/0/9/130969562/9988119.pdf
    • http://naugatuckchamber.biz/uploads/1/3/0/3/130313333/66a7b72476.pdf
    • http://flectomechanical.com/uploads/1/3/0/8/130874652/mugipajifafen.pdf
    • http://life987.com/uploads/1/3/0/5/130589442/ligiz-kojelimorosoj-kudamidasigome-vutiserimepa.pdf
    • http://sebzillla.com/uploads/1/3/0/6/130639984/ceb89c877093367.pdf
    • http://flatbrokeapparel.com/uploads/1/3/0/7/130740053/2001800.pdf
    • http://www.tauntonhillapiary.com/uploads/1/3/0/5/130550824/cdc41cd2b8f7c4.pdf
    • http://aftersales.nopeus.eu/uploads/1/3/0/2/130288554/bulixizexisuzakezoxa.pdf
    • http://jamesdavidson.photography/uploads/1/3/0/5/130538988/xuweje_waxenonej_jonebegujukakal_tunesove.pdf
    • http://vehiclebuybackevent.com/uploads/1/3/0/6/130621802/24fce5e22.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007109.bin
3aff5d36cc48985b235bbeb7369a4c2218b33d4c1f7299bbf851feaa63d13458		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7109 8336 bytes
font_01_sfnt_off00008f83.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F83 1708 bytes

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