Malicious PDF — malware analysis report

Static analysis result for SHA-256 0062d96b535c97cb…

MALICIOUS

PDF

39.7 KB Created: 2020-10-29 08:56:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 903859e52de673b899126f6fbdd0b937 SHA-1: 8975a0a4db1a04d71d0ab89134fdb84cf71ffd9a SHA-256: 0062d96b535c97cbcc49c93d4d58b5712a99e32b0f458536d2645079b08d52de
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://cctraff.ru/123?keyword=toni+turner+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379852/normal_5f8f46c416052.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371005/normal_5f91384894718.pdfIn PDF document text
    • https://kiseridebajesa.weebly.com/uploads/1/3/1/4/131408791/1813485.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371553/normal_5f8a3e7c1232d.pdfIn PDF document text
    • https://xonimitofowe.weebly.com/uploads/1/3/2/6/132682232/1376720.pdfIn PDF document text
    • https://fimozafovobas.weebly.com/uploads/1/3/2/7/132741130/7df34cece1d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373243/normal_5f9a165fedf4a.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/2697538.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377115/normal_5f915046c2ae1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378619/normal_5f95f5418dcb4.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/rokuban.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5f97cf8571fc1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370740/normal_5f8dc5f89410d.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005dff.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005dff.bin)
    • https://cdn.shopify.com/s/files/1/0504/4718/8122/files/deposupinorobexokagos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4295/8231/files/fallout_3_perks_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/1185/0407/files/wogomonitesure.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/business_plan_cover_page_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/9715/2406/files/64535764970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/5328/4008/files/gumifi.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/christmas_music_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/9178/0281/files/92963997622.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/kelawara.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/sobafuwumusokiwopekarit.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 extracted file (font_00_sfnt_off00005dff.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFF 4564 bytes
SHA-256: e722f0f20cb25bcf58790f82c0d26076c7d68376ffbf5c34d066272c1fe265b9
font_01_sfnt_off00006d94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D94 10612 bytes
SHA-256: c24a35c1f5d784188eba3713463efb101fda6c15eb9444c3ebc48e38560c3f4a