Malicious PDF — malware analysis report

Static analysis result for SHA-256 b09c90853d000a41…

MALICIOUS

PDF

44.6 KB Created: 2020-10-05 13:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 024726ff5ba034fb7334bd3e7857f301 SHA-1: 7227d7712fc0a8793b759d8046d34432c5adffbd SHA-256: b09c90853d000a41b7ac67a661c25df7fc62071b6e6640943db00c0d5eaee174
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/strik?keyword=maria+montessori+timeline+pdf In PDF document text
    • http://rixof.thejewelrystatement.com/uploads/1/3/0/8/130874359/balubasob.pdfIn PDF document text
    • http://files.wilddragonflyshop.com/uploads/1/3/1/4/131437702/mowamoji.pdfIn PDF document text
    • http://files.sarakrinitzphotography.com/uploads/1/3/1/1/131163667/6d12df0e6015e59.pdfIn PDF document text
    • http://files.pctigerfootball.com/uploads/1/3/1/6/131606598/1d55849.pdfIn PDF document text
    • http://files.jdbctax.com/uploads/1/3/1/4/131437472/3255115.pdfIn PDF document text
    • http://jujun.shanacinquemani.com/uploads/1/3/1/4/131452824/8383247.pdfIn PDF document text
    • http://files.emateria.com/uploads/1/3/2/8/132814241/614f62bb2a9.pdfIn PDF document text
    • http://tipowovi.meyerpaintingcompany.com/uploads/1/3/1/6/131637339/09d5f.pdfIn PDF document text
    • http://riminufe.caprocktrading.com/uploads/1/3/2/3/132303382/wovufotafajilotuxut.pdfIn PDF document text
    • http://jexofow.kathleenlorenzo.com/uploads/1/3/2/7/132712615/zuwitimosa_razabudimun.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/6ebb6f54-1a52-4393-a26d-eb6bdb3a4fec/80935766584.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26e8de21-5049-4c26-a837-4b463b403e85/59970898056.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81b11bce-7a22-461a-93f8-f5f4b38befcd/62557386695.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75d6232f-fe3f-4d02-9e04-df0e61fecb84/55153574196.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bfeb129-03b5-4050-99b8-779dc2eab651/letizopisemoturasel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee5d93fc-d859-4595-b475-7623cc5f35d4/zunimetisarapele.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1675ee20-bbc1-4390-b4f1-41d87f333113/tumabe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adfbd2fb-778e-493d-b39a-5aa1ce15732b/divuwaxuzusarusesovoroxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a4dd7ae-e8ea-48f8-815c-4d459255d421/motalitevoromagibop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ca65be2-357f-4df2-8465-0a59b107fd38/kasuzube.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7107 5192 bytes
SHA-256: 0fa68dd36a8c8fb97fde66a4b95bc62d3e4fbc4e3239507f13520ed6dc78e208
font_01_sfnt_off000082a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A5 10120 bytes
SHA-256: 46d568aa9d6c4693ab2ab8d945076b5f528ef8cb5aa358140823412421d8f455

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