Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ee041cbfa992d33…

MALICIOUS

PDF

46.4 KB Created: 2020-10-06 16:08:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: cccc0e6d30916fa592baeece937dec6a SHA-1: 76800e8f291390bf4032dd2e2404bd67e49afdfc SHA-256: 2ee041cbfa992d33b199f8c478921da9e18c2f0a468a19ff7f4a911a37d019fb
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://gettraff.ru/strik?keyword=soufflet+de+forge+le+bon+coin In PDF document text
    • http://files.pacofalco.com/uploads/1/3/0/9/130969057/zamagovovulimugogo.pdfIn PDF document text
    • http://velonuvu.life-modusoperandi.com/uploads/1/3/2/8/132814518/fojexikori-vadusesadepajo-wodalesemumime.pdfIn PDF document text
    • http://files.beautyessencebymerabell.com/uploads/1/3/1/4/131454523/kodifofebukefi-vekebivadixok.pdfIn PDF document text
    • http://files.dianagovert.com/uploads/1/3/1/3/131383407/5313526.pdfIn PDF document text
    • http://files.snakerattlers.com/uploads/1/3/1/3/131379833/35da5e3b5.pdfIn PDF document text
    • http://jesuj.actionlearning.nl/uploads/1/3/1/3/131398475/2912938.pdfIn PDF document text
    • http://files.bfterrycheer.com/uploads/1/3/1/4/131453065/d7636.pdfIn PDF document text
    • http://files.adrians411.com/uploads/1/3/2/7/132740445/588320b.pdfIn PDF document text
    • http://files.brighterawards.com/uploads/1/3/1/6/131606819/nomupeguvevafawi.pdfIn PDF document text
    • http://files.refracted.net/uploads/1/3/0/7/130740143/wakadafebupun-gujafakid-pozokikewalipet-lijowenelix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8746/9471/files/sm-g550t1_frp_bypass.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2864/6552/files/the_osmond_family_tree.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4312/2071/files/28438475690.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c871c465-1bb7-4649-96f7-95a6310b11b7/65395403083.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/489ff01c-0d99-429d-bf69-75c3c14b0a15/18736653.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_off000071bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BB 5044 bytes
SHA-256: 8146b129d2ebb7057ada474357cd2e128238f885e929ab9da51e403f9357efb9
font_01_sfnt_off000082f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F6 13084 bytes
SHA-256: f3d93259f481a015411acb940c457bccbc825b0a66598d52728e0beab4963a33