Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd772f62b83cd84d…

MALICIOUS

PDF

84.8 KB Created: 2021-03-01 01:54:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 80fbc2d9bbd9052914f867f62ceedce0 SHA-1: acaf36796e4e86a0cfa604a06d0a6ec75fb1c5f2 SHA-256: cd772f62b83cd84d7e44399783e43938920348190642dbb63eedf0b4a3245610
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://soxebez.ru/wix?keyword=black+widow+full+movie+in+hindi+watch+online+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489042/normal_6015de6356bab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414869/normal_60182de0cf021.pdfIn PDF document text
    • https://waxevinibiwe.weebly.com/uploads/1/3/0/9/130969944/e8e941a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423757/normal_601a4b385ffa0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424662/normal_5ffed049ceb9d.pdfIn PDF document text
    • https://tuwazumabokanif.weebly.com/uploads/1/3/4/6/134611666/sidadumugominij.pdfIn PDF document text
    • http://fbdirect.site/52172905825v04ju.pdfIn PDF document text
    • https://cdn.sqhk.co/puvegipuros/gigdUTh/2d_stacked_stl.pdfIn PDF document text
    • http://antonio-ita.space/hello_bello_body_washlwa3s.pdfIn PDF document text
    • https://wopeduvolevim.weebly.com/uploads/1/3/0/7/130776212/365c1f0ab186636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366653/normal_602d70c9bb6ad.pdfIn PDF document text
    • https://vilotirupoj.weebly.com/uploads/1/3/5/3/135328316/4325453.pdfIn PDF document text
    • http://trafikcezaodebayisi.com/hpi_baja_5b_flux_for_saleu57wc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/baxunaf/common_logical_fallacies.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/label_format_template.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_off000110f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110F9 5348 bytes
SHA-256: 1027b086f2c3bfff67b4034b01b711aeeea34c4655bf33a4815368e0d7b259fb
font_01_sfnt_off00012322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12322 10240 bytes
SHA-256: cffeb422d2fc3fddef80f40833346bb52705a19c7b9e62b167b66ab84f58ac05