Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebd5b0ecbf59bba9…

MALICIOUS

PDF

42.5 KB Created: 2020-10-03 09:14:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1562eca01998d08982e490f52d91d721 SHA-1: acb644c9316fb337e572bd979d8de6be423c7c12 SHA-256: ebd5b0ecbf59bba9067af013f7edf9d0047d731fd3eb5608c432dae466f1792b
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://ggtraff.ru/strik?keyword=st+james+infirmary+blues+piano+sheet In PDF document text
    • http://tuvukif.stpaulsfulda.org/uploads/1/3/0/7/130775990/lawox-xiwupat-ropakelusufigi-kumavopit.pdfIn PDF document text
    • http://files.keepitpumping.net/uploads/1/3/0/8/130814014/8559426.pdfIn PDF document text
    • http://files.lolitapelegrime.com/uploads/1/3/1/1/131164398/4974272.pdfIn PDF document text
    • http://zorupizu.mrslmeyer.com/uploads/1/3/1/3/131398232/lolabov_xidovasuga_gujimanis.pdfIn PDF document text
    • https://site-1038653.mozfiles.com/files/1038653/67041040910.pdfIn PDF document text
    • https://site-1037175.mozfiles.com/files/1037175/ligitijirawape.pdfIn PDF document text
    • https://site-1039719.mozfiles.com/files/1039719/boragafesopapalojawuvu.pdfIn PDF document text
    • https://site-1038815.mozfiles.com/files/1038815/keralexidubamanuwofo.pdfIn PDF document text
    • https://site-1036981.mozfiles.com/files/1036981/10143656228.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/1/0427/7737/8972/files/fema_rv_trailers_for_sale_in_texas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7409/3217/files/illustrator_perspective_grid_isometric.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9630/4536/files/i_like_it_like_that_movie_netflix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8747/0485/files/vojirifavaliwosurutomulex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2390/0565/files/how_to_hack_simpsons_tapped_out_without_human_verification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0763/7661/files/52292116696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0830/files/the_prophet_khalil_gibran.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
    • https://creativecommons.org/liceIn 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_off0000595d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x595D 5560 bytes
SHA-256: b5fdb7883c4fbdccd422a7a81a9b692cff08299c9c516a57643bd5ecd8141670
font_01_sfnt_off00006c1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C1E 15188 bytes
SHA-256: 47a37d299984850cc8ef11d0493deaaacf6661adf50603e2039a41ba8bd07dff

Open this report in the interactive analyzer, or submit your own file for analysis.