Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c92cf690062bde8…

MALICIOUS

PDF

45.4 KB Created: 2020-11-06 15:11:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 768875a5727acffece5370e670a9347b SHA-1: 95ad5053fbb98da8dad0b20a9cbd202b75dd5301 SHA-256: 5c92cf690062bde8483c98c5e52fa776720d53eca2be581218952eee6e8c34e6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://trafftec.ru/123?keyword=the+plant+paradox+diet+food+list+pdf PDF link annotation
    • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/zobujuz.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/motonodalugejo-nuvojekeja.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/e5bcd2697.pdfIn PDF document text
    • https://xagixuruzetel.weebly.com/uploads/1/3/4/3/134319769/pizafiwemez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375195/normal_5f95d4fdbcc95.pdfIn PDF document text
    • https://jusegopij.weebly.com/uploads/1/3/4/4/134480833/590ce.pdfIn PDF document text
    • https://bavejojonosepes.weebly.com/uploads/1/3/1/3/131380601/31dc9.pdfIn PDF document text
    • https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/rurubewe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6607fbc0-5d1f-47b2-8764-e5a88284711b/41151305100.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/tusolibinutojujufolop.pdfIn PDF document text
    • https://s3.amazonaws.com/padoragog/dead_space_2_hardcore_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/85824786735.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71EC 5144 bytes
SHA-256: 62e2cbe42d32ae9db2f858004e8a6dff9360d34c6576d87d40eb16b2aa9fb4ec
font_01_sfnt_off0000836e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x836E 11196 bytes
SHA-256: 7698e83b34fd878a77709843a8b424fe8c7d0eb5beb37a267426d371087b638f