Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc43e3badd44089a…

MALICIOUS

PDF

49.1 KB Created: 2020-07-28 10:46:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ddcff408fbae10d3b83b5f1431b36450 SHA-1: 54b746fe3ce25320e7e9792c00533fe8755e3a4a SHA-256: fc43e3badd44089ae0023daeed3e40b5f2d4e84a73f2cd463cb9d28ef38ca6ae
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a significant number of embedded links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to contain text related to 'fox tv guide listing', suggesting a lure. The presence of a link farm indicates an attempt to distribute malicious content or phish users.

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=fox+tv+guide+listing In PDF document text
    • http://files.kootenaycolumbiatherapeutics.com/uploads/1/3/0/8/130814680/02c90a887.pdfIn PDF document text
    • http://files.heatherhuangstudio.com/uploads/1/3/0/8/130813409/8cb9a.pdfIn PDF document text
    • http://files.ebonydeecheyne.com/uploads/1/3/0/7/130739204/9292562.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/1/0430/9064/1047/files/39400859859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53446206952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5656/1319/files/sadorapinix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53522836856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4945/0663/files/81342513152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5457/0399/files/sodezokedexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0781/1482/files/29405024891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pelezegagujagemubejapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/lofedosivudezofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9583/4280/files/46287132645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0440/3613/files/bisedopuriduwodubijixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4046/4281/files/84641892080.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 7

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_off00008429.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8429 4652 bytes
SHA-256: c01bf6d6f5b557aece62e86244a0d33f834ec599efd90cf025ad1c76aa7ce8ec
font_01_sfnt_off0000941e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x941E 10352 bytes
SHA-256: 2e10a585fa28242a993c00fec96c0dce128e49dee49fbaab82675bb53176c4b8

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