Malicious PDF — malware analysis report

Static analysis result for SHA-256 00de805466a1985f…

MALICIOUS

PDF

40.8 KB Created: 2020-10-14 21:57:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 81a4b07d0e76343a43b9ec3a965c54f2 SHA-1: 218f026abb9befb179256e353bb70b6efc7fb38d SHA-256: 00de805466a1985f00439696ee87741e527db2c893ab433aa9483c9a88e3ae88
194 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=braven+balance+pairing+instructions In PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/linurigaruxox.pdfIn PDF document text
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/jutile_wunanefoxulij.pdfIn PDF document text
    • https://site-1044105.mozfiles.com/files/1044105/35481826090.pdfIn PDF document text
    • https://site-1040221.mozfiles.com/files/1040221/sunigejukesetepevuduloj.pdfIn PDF document text
    • https://site-1038810.mozfiles.com/files/1038810/nuvasanogobatewofetinozo.pdfIn PDF document text
    • https://site-1040218.mozfiles.com/files/1040218/47975325158.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/jasamejug-jenutuzudemeluf.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/sidobojugonuxexoz.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/jekowis_fuvonobux.pdfIn PDF document text
    • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/700644.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/vunud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366004/normal_5f87070999700.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365606/normal_5f86f5058a00f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f86f4a015768.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366659/normal_5f87300e82600.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365546/normal_5f871bcfbfe10.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/1/0485/7954/3200/files/ejemplos_de_monografias_cortas_para_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9826/2689/files/brooklyn_tech_college_acceptance_rate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6847/0936/files/solar_system_projects_for_kindergarten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4122/1525/files/manual_fossil_q_venture_gen_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6649/7440/files/gadexepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/5622/1345/files/uf_volleyball_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/6678/8506/files/35703164323.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_off0000603b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x603B 5348 bytes
SHA-256: 7aefa155d8882188dd8b937038eed996ab3c05f6d02b0f63eb15dd464602ff4c
font_01_sfnt_off0000727f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727F 10424 bytes
SHA-256: dfa1cd4cef0045fd7e8ce801e4c6a8c1b43ff597e64471d654a2bfd68aa69c34