Malicious PDF — malware analysis report

Static analysis result for SHA-256 7049d53f1ec9c999…

MALICIOUS

PDF

43.5 KB Created: 2020-10-05 17:32:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 23e26e347c6b034984deb8cfcd9bcefb SHA-1: 9098e2bd0bf903ed3655060065f5b91a97eab6db SHA-256: 7049d53f1ec9c999fd1b8d13751ca707a7a27147a9578cd6d32925664a73f6bc
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://cctraff.ru/strik?keyword=modern+competitive+strategy+3rd+pdf In PDF document text
    • http://jalili.healthandhappyheart.com/uploads/1/3/1/1/131163658/gujef.pdfIn PDF document text
    • http://files.threecreekaussies.com/uploads/1/3/2/7/132710655/sujut.pdfIn PDF document text
    • http://zonopomaj.goal-sports.net/uploads/1/3/1/3/131379578/88a447c1813.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/1/0481/3334/1347/files/minecraft_roleplay_idea_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3149/3784/files/18_qt_roaster_oven_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/6122/0006/files/20822443269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7404/3552/files/white_tiger_cubs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9892/5976/files/58798187235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7949/7896/files/22403199973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/3761/7059/files/norman_spencer_chaplin_death.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8233/3864/files/83306368163.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c11b6ec-1e1f-4fea-a466-d2d3e2e1c39f/18905034675.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bc16024-c589-42de-a72f-0b971af9c58a/77966086782.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2dcedba1-b2d6-4c02-a953-89e6c66ccb0b/napovegijo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/055c5e13-8b6f-489d-8dab-c54bf414fdc5/meratexuxomit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dadb9232-c40e-4be1-ada3-3e4df2dc1cd7/dafeba.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_off00006aeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEB 5776 bytes
SHA-256: 694d5ffbdf8b37626d332da291a61c614288676f3977d6f0738cacc7729ab2cf
font_01_sfnt_off00007ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA0 10072 bytes
SHA-256: d3db636bbee5a14aeb3700c75d453947077c3adc4005296816baab5c3771055d

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