Malicious PDF — malware analysis report

Static analysis result for SHA-256 b74506d94d0b2aaa…

MALICIOUS

PDF

35.7 KB Created: 2020-10-28 16:19:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 0d51a392bb542655fe5a2abd64fa0bdd SHA-1: 3c95038ce0185955ea5c2f94f64fc549716274ac SHA-256: b74506d94d0b2aaae2a3673864edc6c988db20e424d9c5c52a4c8b36eae5e943
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/aws?keyword=the+shining+t+shirt+amazon In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369784/normal_5f8d844fa271f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368238/normal_5f87dd0b56a61.pdfIn PDF document text
    • https://gaxopekel.weebly.com/uploads/1/3/0/9/130969853/papefokimofuje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366348/normal_5f89d0e7e22dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366302/normal_5f87cbf814d48.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/3257372.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/3731638.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366003/normal_5f874a8970779.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387056/normal_5f8fddc1119e8.pdfIn PDF document text
    • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/vinemimamuzar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365540/normal_5f8711718b334.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366022/normal_5f8708afcea14.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/1/0481/2229/8521/files/coleman_mini_bike_ct200u-ex_upgrades.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/86370511775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9651/4461/files/hack_any_android_game_without_root.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/food_safety_management_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0033/1925/files/spartacus_1960_screenplay.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/fojogofupel.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_off00004be5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BE5 5064 bytes
SHA-256: d660879b86f58dbdf479dec07f5d31c61f79c4e5f4427317f601edb1eafae968
font_01_sfnt_off00005cf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF6 10784 bytes
SHA-256: 5469fac6619dbaa34322af4112fa3fa59ddacb638c8b72f0a0d53188a9906cb1

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