Malicious PDF — malware analysis report

Static analysis result for SHA-256 94cd874e7f20fdf6…

MALICIOUS

PDF

39.4 KB Created: 2020-10-06 21:50:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 13f8a2526bc28f584bc87c85f594d204 SHA-1: 774d27b0f48d73ba89a061d99d6370cb31bf99cd SHA-256: 94cd874e7f20fdf66617c482778710fa92e535fb434752142d2033b41f95731b
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=red+giant+serial+number In PDF document text
    • http://files.wrarodeo.com/uploads/1/3/2/8/132814219/6090387.pdfIn PDF document text
    • http://files.bestoftimeswatch.com/uploads/1/3/1/3/131379749/e4facd24be.pdfIn PDF document text
    • http://files.bluecarpetcorridor.org/uploads/1/3/0/7/130740174/vatazu.pdfIn PDF document text
    • http://masipu.theedgesalontxk.com/uploads/1/3/1/4/131408899/babojorememedojet.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/1/0433/4750/9416/files/index_of_dissimilarity_mcat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8081/8581/files/9371195353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0119/files/kowawexebipixagoguka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0708/0610/files/dopebexijomaxor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/9622/3133/files/fedukuvusoxok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3098/2041/files/mtg_arena_steam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1640ed4d-dd37-4906-8324-8fd720e87398/jozibitonesuxelirudureran.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37532342-6cb0-463b-9c65-8edd29a4deb4/34617684204.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09e4a70a-003a-42cf-87a2-c0391d1b7232/71690504428.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/304b4f6c-1f94-44b5-ba4d-057198cdfcce/pusudujusanelowaxagepofug.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_off00005d98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D98 5292 bytes
SHA-256: a0577249a9afbf3ad439fbdaead7d13ed44b2988c0304df8ea2d7542f63cc404
font_01_sfnt_off00006f80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F80 9912 bytes
SHA-256: c490ad6cf6e371c8b95a962657eef43779c0a67bb63766d3d477ce279f2c9157

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