Malicious PDF — malware analysis report

Static analysis result for SHA-256 08b3cd1967bbbd2e…

MALICIOUS

PDF

33.9 KB Created: 2020-08-24 09:32:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34b3a41c24d416efa8ac3f699f551289 SHA-1: ea6b436ceaf119a2095e2de512ef6905c687c1e4 SHA-256: 08b3cd1967bbbd2e1ba840ce68c0f056a4090f3bde046e3c4aa7b38957f4fdaf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body itself is largely obfuscated but contains a reference to the primary redirector URL. The presence of numerous links to external PDFs, combined with the malicious redirector, suggests a link farm or phishing campaign designed to lead users to malicious sites.

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.ru/pify?keyword=latitude+and+longitude+earthguide In PDF document text
    • http://files.myoutdoorvisions.com/uploads/1/3/2/3/132302940/pisatu.pdfIn PDF document text
    • http://files.coastal-curators.com/uploads/1/3/0/7/130776162/taxonudawugem.pdfIn PDF document text
    • http://files.swatarachurchofgod.org/uploads/1/3/2/8/132814166/dukulitomo_sivir.pdfIn PDF document text
    • http://files.itwasonmyvisionboard.com/uploads/1/3/0/7/130775786/9304546.pdfIn PDF document text
    • http://silapevu.goadsandwelldrivennails.org/uploads/1/3/1/1/131164199/bakeberim.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/1/0434/4119/3110/files/algebraic_geometry_physics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7323/9195/files/jopolegagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8515/9843/files/hallelujah_pentatonix_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8241/6281/files/6619804888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2963/4970/files/luxara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8626/3960/files/lugafilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7818/9205/files/48216751615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0006/2371/files/notiluvutamukavolofade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8576/6561/files/girisunozoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4916/4698/files/jujitogej.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_off00004988.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4988 4852 bytes
SHA-256: 9cd828da03043b0658b8a988784f27014c9cb6215b22c8f9e5c34fa372ca07ee
font_01_sfnt_off000059f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59F7 9600 bytes
SHA-256: 73f3eb3b51bc5989e69e0b53b26f0aafba5a2218ac476cee7884402ac5bbc490

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