Malicious PDF — malware analysis report

Static analysis result for SHA-256 51d82a766904a866…

MALICIOUS

PDF

35.7 KB Created: 2020-04-05 14:02:04 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 71f88b858d65369aaed3b5897491df0e SHA-1: fdb57b454622eca5780c8645fafbb80f0df11bf5 SHA-256: 51d82a766904a8666e05aab2ccb22e9e60564eff10d618d1269fbd07cfce9d7f
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, disguised as a vehicle purchase contract, aiming to direct users to various websites. The heuristic 'PDF_SEO_LINK_FARM' indicates a deliberate attempt to create a link farm, likely for SEO manipulation or to host malicious content across multiple domains. 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://themarobishop.com/uploads/1/3/0/6/130604574/130604574.html#contrato+promesa+de+compraventa+de+vehiculo
    • http://yposf.com/uploads/1/3/0/7/130740434/gawut.pdf
    • http://fosterwiley.net/uploads/1/3/0/5/130590138/3288170.pdf
    • http://smithscateringholbrook.com/uploads/1/3/0/5/130543766/kazanodatabela.pdf
    • http://camelliacharlesjewelry.com/uploads/1/3/0/7/130738882/3513581.pdf
    • http://loriezapf.com/uploads/1/3/0/5/130544413/sozupiwutuzu.pdf
    • http://combatsportsdietitian.com/uploads/1/3/0/6/130605267/sebukavik.pdf
    • http://tigregatto.com/uploads/1/3/0/6/130605016/bibemoraki.pdf
    • http://supplyx2.com/uploads/1/3/0/6/130621038/mizuvi-banekafenopofez.pdf
    • http://healthpoweredbyou.com/uploads/1/3/0/5/130546434/7a9b746428.pdf
    • http://cafeconyoga.com/uploads/1/3/0/5/130588286/vizurebujane.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_off00006251.bin
b616c194ba979b479a181416437fbff45f69936f1b4ba0c5574fe67a46940110		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6251 8300 bytes

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