Malicious PDF — malware analysis report

Static analysis result for SHA-256 f49a24706fecf5da…

MALICIOUS

PDF

71.6 KB Created: 2020-10-03 16:34:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 40368a64a182171ad063dffdaa0948cb SHA-1: 7f0bbb07a2ee3403792b9e81e9926fc03c66db8a SHA-256: f49a24706fecf5da72cce4bb4f60fb193d3190b7668c7e3ede4a8771043dc83b
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=waldorf+curriculum+pdf In PDF document text
    • http://virebe.njlimotaxicab.com/uploads/1/3/0/8/130873922/sizus_nupibepeg.pdfIn PDF document text
    • http://kipilu.goldencoastbailbonds.com/uploads/1/3/2/7/132712237/valojamivaxoxi-puxenox-mikunifupekuk-luvumag.pdfIn PDF document text
    • http://files.siintallating.com/uploads/1/3/2/6/132681333/3787907.pdfIn PDF document text
    • http://tewov.aatp-mysterygames.com/uploads/1/3/0/8/130814347/27e981b01ec15.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/1/0482/8646/6210/files/1911_bb_gun_conversion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6292/6229/files/ritivijusejalowiruguvux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8605/3527/files/dmv_drivers_manual_audio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/2339/6775/files/50009844894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6450/6006/files/mat_foundation_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4495/3509/files/8642046191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4007/1070/files/fafefumajugapajar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5638/9528/files/45836194557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/2749/2764/files/granblue_fantasy_apk_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6683/2534/files/crazy_town_butterfly_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3532/0735/files/30262326629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2745/5400/files/32626179925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5646/3015/files/colind_de_craciun_film.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_off0000dd88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD88 5136 bytes
SHA-256: f64c13cc29dd05be2fc8602e234e65cf0ac16e5423b0b1264002ed3336785ea5
font_01_sfnt_off0000eef8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF8 10144 bytes
SHA-256: b50c770573b0acfddab85136cd3c8ebd566268b667048f52a1733407fff4b66b

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