Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6a5445b69125ce4…

MALICIOUS

PDF

40.0 KB Created: 2020-04-07 20:50:18 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 84217a4029699c363238d5ea81ffb6e4 SHA-1: e1b3e8204820d4fa259449518c282203631b9a49 SHA-256: d6a5445b69125ce4e7325e7dc1fffb639e4a7b263a5958f9f662fd1faf648397
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links to domains that appear to be part of a link farm, a common tactic for SEO manipulation or distributing malicious content. The primary heuristic identified a "PDF_SEO_LINK_FARM" with 18 external links, and another heuristic flagged an external URI pointing to `http://southernprovision.store/uploads/1/3/0/8/130873951/130873951.html#earfcn+bofetada+de+c%C3%A1lculo+de+calcul`. No scripts were extracted, but the sheer volume of outbound links suggests a malicious intent to redirect users to potentially harmful sites.

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://southernprovision.store/uploads/1/3/0/8/130873951/130873951.html#earfcn+bofetada+de+c%C3%A1lculo+de+calcul PDF link annotation
    • http://altusgreen.com/uploads/1/3/0/2/130291579/390770.pdfIn PDF document text
    • http://mindfulengagment.com/uploads/1/3/1/0/131070750/gasubanigatesaz.pdfIn PDF document text
    • http://goldsmithoutcomes.com/uploads/1/3/0/7/130776394/1527805.pdfIn PDF document text
    • http://angkara.me/uploads/1/3/1/1/131163856/gidudize-sufufet-pakaxisarave.pdfIn PDF document text
    • http://joshcook.info/uploads/1/3/0/6/130620836/4153008.pdfIn PDF document text
    • http://bold2thebone.com/uploads/1/3/0/9/130970012/zokirumeta-vukoluwabifimi.pdfIn PDF document text
    • http://awinspection.net/uploads/1/3/0/8/130813649/pasat_lifogozo.pdfIn PDF document text
    • http://toyota-rav4-limited-sale.com/uploads/1/3/0/7/130776344/pubosarefawen.pdfIn PDF document text
    • http://mobilemechanicinperth.com/uploads/1/3/0/4/130483123/xuxetimojanexes-lexagovuxoxil.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007023.bin
25c169b1a4c32cc39314b759aab21a8e6119370382b4168733b71602d7a08152		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7023 8824 bytes

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