Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ff6f66d9126c62…

MALICIOUS

PDF

37.4 KB Created: 2020-05-23 04:06:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: d089b31174150e17960b732cdb1dab14 SHA-1: 3781c99c8ffdba255dc9a5a5e179f94d948a5468 SHA-256: 32ff6f66d9126c620d68da9d5946f247f79c038800c9d3f18b2adf84e2d51f6c
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also strongly indicated maliciousness. These links likely serve to direct users to potentially malicious websites or to manipulate search engine rankings. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://x0363781xstreamtravel.xsideas.com/uploads/1/3/0/9/130969358/130969358.html#historia+del+neoliberalismo+pdf PDF link annotation
    • http://sweetpeaphotographydc.com/uploads/1/3/1/4/131437377/vunetoge.pdfIn PDF document text
    • http://policevictimsmemorial.com/uploads/1/3/0/5/130539678/86b43d12a743f.pdfIn PDF document text
    • http://truefitnation.com/uploads/1/3/0/2/130289669/mazam.pdfIn PDF document text
    • http://iaminclusive.com/uploads/1/3/1/6/131606479/jekutezejes-jazuge.pdfIn PDF document text
    • http://twindo.ca/uploads/1/3/0/6/130605390/momobiviruzidal-rajej-fedaluwi.pdfIn PDF document text
    • http://geoffreygualano.com/uploads/1/3/0/4/130483670/6994695.pdfIn PDF document text
    • http://jhand.shop/uploads/1/3/0/8/130873992/901d292d63d9.pdfIn PDF document text
    • http://thecleancoconutsoapshop.com/uploads/1/3/0/7/130740522/xifamupisufav_jukaludi_kibokifonapivo_bepopixufig.pdfIn PDF document text
    • http://loweryourratetoday.com/uploads/1/3/1/1/131164027/sonudag.pdfIn PDF document text
    • http://befreeproduction.com/uploads/1/3/1/6/131636808/filuf.pdfIn PDF document text
    • http://shopplexusproducts.com/uploads/1/3/0/5/130539908/4220354.pdfIn PDF document text
    • http://minischnauzerpuppiesnc.com/uploads/1/3/1/6/131606491/baa59a487fe67.pdfIn PDF document text
    • http://avenuethirtyfour.com/uploads/1/3/0/3/130324320/6e48e729.pdfIn PDF document text
    • http://sherylhesseportfolio.com/uploads/1/3/0/6/130620958/gibikuvaruki.pdfIn PDF document text
    • http://hometoroam.org/uploads/1/3/0/5/130588663/9735933.pdfIn PDF document text
    • http://tib-feee.com/uploads/1/3/1/1/131164016/fopuzadatijuwu-tidusi.pdfIn PDF document text
    • http://theradicallygood.com/uploads/1/3/0/6/130621510/powetud.pdfIn PDF document text
    • http://vincenttsaiarts.com/uploads/1/3/1/3/131382430/dirozuwiwobif-dawatekowete-sokase.pdfIn PDF document text
    • http://emaileducation.org/uploads/1/3/0/8/130813846/fa6fa.pdfIn PDF document text
    • http://rollonfaith19.org/uploads/1/3/0/5/130539205/jarumibumiwew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000659c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x659C 10572 bytes
SHA-256: 4e10a2e2e8a396c118e0fc565cfc4677c484adca16c5f10c425e48991dde442f

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