Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8a11087e72b33e4…

MALICIOUS

PDF

33.0 KB Created: 2020-05-24 05:18:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7384703eec4a05cae484cb9e144cb6e2 SHA-1: 84cc84fbcf6aaf268f46ed22853b834d569ad134 SHA-256: d8a11087e72b33e4c65e0352f847ebeeafcae4c7ec43684301c270bdb1c6920d
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links to various domains, indicating a link farm or SEO spamming operation. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this malicious intent. The document body itself is heavily obfuscated and contains some of the same URLs, reinforcing the idea that the primary function is to redirect users to these external resources. No scripts were extracted, limiting the analysis of direct payload delivery.

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://8a7ufh.bdgct.com/uploads/1/3/0/4/130436085/130436085.html#above+all+powers+music
    • http://lizempathic.com/uploads/1/3/0/5/130539825/9339073.pdf
    • http://money4real.org/uploads/1/3/0/5/130541744/weberurotiweb-fafeweloz.pdf
    • http://tokeplusherbs.com/uploads/1/3/0/7/130739593/ca94dacea.pdf
    • http://gaidid.com/uploads/1/3/0/8/130874582/lelupebowumapi.pdf
    • http://vapealoha.com/uploads/1/3/1/4/131438800/4254167.pdf
    • http://jewishsculptures.com/uploads/1/3/0/7/130739430/372daa84b5.pdf
    • http://kayellekouture.com/uploads/1/3/0/7/130775934/7234913.pdf
    • http://vapeandsmokeclub.com/uploads/1/3/1/4/131406354/5912380.pdf
    • http://khibasfiberarts.com/uploads/1/3/0/6/130621951/xiziwubupi-bipufimiwo.pdf
    • http://richmondvideoservices.com/uploads/1/3/0/5/130543305/wesujofoduraji_fisujafe.pdf
    • http://aectperambalur.com/uploads/1/3/1/4/131437668/b2f5fd61.pdf
    • http://nightanddaylocksmithnyc.com/uploads/1/3/1/4/131452823/a15292764e7c.pdf
    • http://jenniferchin.studio/uploads/1/3/1/1/131164272/b1455d2e96a.pdf
    • http://thecrayonstory.com/uploads/1/3/0/5/130550716/vivanixobawaxuf.pdf
    • http://budstree.com/uploads/1/3/0/8/130814083/sofuwipeloxatew.pdf
    • http://makemeflytravels.net/uploads/1/3/1/3/131384539/bokovukotilos_nuzibuzimi.pdf
    • http://fetesetevenementsspeciaux.com/uploads/1/3/1/4/131452935/zitukeruzuxufi.pdf
    • http://servicescommboard.com/uploads/1/3/0/6/130639317/7f0a23fa9.pdf
    • http://yoonikorn.com/uploads/1/3/0/6/130639418/zukebejefo.pdf
    • http://dereli.nl/uploads/1/3/1/4/131437736/fajinow.pdf
    • http://wheelerldealer.com/uploads/1/3/1/3/131380388/tolofuvesanig.pdf
    • http://crystalobregon.net/uploads/1/3/0/7/130739177/2654990.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_off00005515.bin
84339fa2b5ee72b0b973ab3433f84f8f9f9d5e922d6ef5847e0e5638a62f0efc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5515 10368 bytes

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