Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a6725f98d7e6bd6…

MALICIOUS

PDF

42.3 KB Created: 2020-08-20 03:42:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6fc38869344c6799774bdfd62de10104 SHA-1: 864aa182f090129e9bdc9542fdda06cb2d76b8ad SHA-256: 8a6725f98d7e6bd6b248dc174c52052a2b19a7fdb0c6e25ae004d4ec5b7b73b7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector, 'https://ttraff.cc/pify?keyword=2002+blood+work+movie', suggesting an attempt to direct users to malicious content. The document body, though partially corrupted, contains references to '2002 blood work movie' and the authoring application 'wkhtmltopdf', indicating a potential lure to disguise the malicious links. The presence of numerous PDF links, many with numeric or generic slugs, suggests a link farm or SEO poisoning tactic to distribute malicious content.

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=2002+blood+work+movie In PDF document text
    • http://zizejijuv.celticmistminiaturehorses.com/uploads/1/3/0/7/130740141/8429584.pdfIn PDF document text
    • http://soxiv.sylviashanahan1.com/uploads/1/3/1/0/131071041/4654233.pdfIn PDF document text
    • http://guluni.rivusllc.com/uploads/1/3/1/6/131606260/fumotidefolo.pdfIn PDF document text
    • http://files.donmaymon.org/uploads/1/3/1/4/131407918/b489b1.pdfIn PDF document text
    • http://kifur.camarillocommunitygardens.org/uploads/1/3/1/6/131606490/fefuladuzupoful-wuvip-vabom.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/1/0430/1409/5001/files/48646785938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9221/files/cantilever_structure_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2182/2120/files/printable_calendar_2020_australia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5557/0341/files/simple_past_tense_exercises_fill_in_the_blanks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/51609522406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1039/1207/files/pomona_ca_newspaper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3644/0726/files/63250397795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7496/8997/files/98493424028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2500/1630/files/absalom_station.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7313/2961/files/matthew_henry_concise_bible_commentary.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 5

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_off00006784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6784 5116 bytes
SHA-256: 1f65ef979d6633593892b1ac69537fcb611a242cf73c2b8cfbf21ea79726c3b2
font_01_sfnt_off000078ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78ED 10456 bytes
SHA-256: 426ef4b0f7c3e6366e2d428e1d78bc77ade404e82ccde8aa9b27bcf8c4604a4e

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