Malicious PDF — malware analysis report

Static analysis result for SHA-256 babda20ee3f8c71d…

MALICIOUS

PDF

35.3 KB Created: 2020-08-19 22:28:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 5f8b34f2c1cc699b8e5ac667db41a85d SHA-1: d1bd26ca3e80aa7d04cbce7a27bf13a57c236a6f SHA-256: babda20ee3f8c71d32888189ba782210ad4ebb0c6b27cfc4ea8408a130a8ce24
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://ttraff.cc/pify?keyword=a+d+c+a+ki+full+form In PDF document text
    • http://files.m7testcenter.com/uploads/1/3/2/7/132740398/fifopo.pdfIn PDF document text
    • http://files.streetstampederally.com/uploads/1/3/1/4/131410370/6f13401db7b0e1c.pdfIn PDF document text
    • http://zarikit.wicknscents.com/uploads/1/3/2/8/132815806/pafepimamuwoxi.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/1/0430/0288/8351/files/doxokupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/jakoninatow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2235/9447/files/star_wars_character_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5536/3734/files/72416557256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8009/7687/files/pelupotiruzadazewaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7035/7653/files/midasoduranafosiregozama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9153/7563/files/radajigoreletagom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6495/0945/files/98216003670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9118/8117/files/dams_biochemistry_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2990/0957/files/22407692464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/tekonsha_prodigy_p3_trailer_brake_controller_manual.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 6

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_off00004eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB8 5044 bytes
SHA-256: ad29ad252d6c506975ef38074a0101790b849d4e9065437f841f855f48d975f4
font_01_sfnt_off00005fc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC0 9640 bytes
SHA-256: 758bd42a6bc55ed965a7952b218a94365f9f087b45e5b7f189447ee9421eafd8

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