Malicious PDF — malware analysis report

Static analysis result for SHA-256 211e3d39ca494384…

MALICIOUS

PDF

34.8 KB Created: 2020-05-14 20:32:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-10
MD5: 79a25618728d797838c42dea85677044 SHA-1: ca6179c734fb6ba2cbd8dd246a679e5c4fc5d569 SHA-256: 211e3d39ca49438494435cd4b9fe367fd4ad31d69f1e7ceb211b4e2e08a01838
96 Risk Score

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://houseforsalellc.com/uploads/1/3/0/6/130604632/130604632.html#manufacturers+incident+report+form PDF link annotation
    • http://countrymusicpromo.com/uploads/1/3/1/3/131381675/d3d7ee56f65.pdfIn PDF document text
    • http://nfpcso.com/uploads/1/3/0/2/130288753/6833324.pdfIn PDF document text
    • http://cherylscornorcafe.com/uploads/1/3/0/6/130620929/8049168.pdfIn PDF document text
    • http://trackchairextreme.com/uploads/1/3/1/4/131453193/dofageg_kowuj.pdfIn PDF document text
    • http://thesavvygirlguide.com/uploads/1/3/0/7/130738697/1388410.pdfIn PDF document text
    • http://myowndiet.net/uploads/1/3/0/3/130313729/sojolodot.pdfIn PDF document text
    • http://brownconstructions.com/uploads/1/3/1/6/131636586/8181047.pdfIn PDF document text
    • http://elseorganizing.com/uploads/1/3/0/7/130738963/dafegovoxixiwajokoz.pdfIn PDF document text
    • http://haganresources.com/uploads/1/3/0/5/130550993/zosunejunajev-vopejivolug-jakasifa.pdfIn PDF document text
    • http://johnsguitarrepair.com/uploads/1/3/1/4/131484467/zivifitefot.pdfIn PDF document text
    • http://behind-thescene.com/uploads/1/3/1/4/131483126/xazaw.pdfIn PDF document text
    • http://yoonikorn.com/uploads/1/3/0/6/130639418/zukebejefo.pdfIn PDF document text
    • http://serozconstruction.com/uploads/1/3/0/6/130621583/88f6cd4d131.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005dcc.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005dcc.bin)
    • 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 extracted file (font_00_sfnt_off00005dcc.bin)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCC 9980 bytes
SHA-256: c3d099000550cd909dcf82084e91d6a1a2630b10f52cb3a93eb170e2e4809a3d