Malicious PDF — malware analysis report

Static analysis result for SHA-256 785cde01f20b085b…

MALICIOUS

PDF

43.4 KB Created: 2020-09-20 00:13:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1c7644647937fd5dccb3df433947be4 SHA-1: 18a0b26db4b10216c4e7802c9b2f991f441d3145 SHA-256: 785cde01f20b085b309ca7db09b13f32b4a9ceae56cb64742e28fd3bab1eb0c5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to redirectors and potentially malicious domains, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The document body text and embedded links suggest a lure to trick users into visiting external sites, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.link/wix?keyword=watch+gossip+girl+season+5+episode+5 In PDF document text
    • http://dijeti.schihei.eu/uploads/1/3/1/3/131379605/b5e9cd491865.pdfIn PDF document text
    • http://files.crcakids.com/uploads/1/3/0/9/130969981/galalakipu.pdfIn PDF document text
    • http://kawiganu.foxpathfcr.com/uploads/1/3/0/7/130739173/b3490.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/1/0486/1090/2176/files/kg_to_ounce.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9409/7576/files/proper_care_and_feeding_of_husbands_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6908/7642/files/33658008083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2035/2677/files/examen_espaol_quinto_bimestre_cuarto_grado_primaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/43442178230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7537/9101/files/integrated_math_2_workbook_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8000/6294/files/76883002104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/wimejenajaguzido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/don_t_look_back_in_anger_guitar.pdfIn PDF document text
    • https://7290e645-6927-4cdb-98dc-669b0f07fe44.filesusr.com/ugd/eddc50_ebcedec1aaf34d938df9956ca3ef27af.pdf?index=trueIn PDF document text
    • https://85c1e96b-a84e-4a6a-b444-1de4eaa9cd4b.filesusr.com/ugd/097bd5_60506cb503ce47b7a679abf44b37ff0d.pdf?index=trueIn PDF document text
    • https://a42e0eb2-7495-4fbe-83eb-92a7d1ee6784.filesusr.com/ugd/3794ad_9b00c44203e040b4ba79a955a6ef367d.pdf?index=trueIn 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 2

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_off000069b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B2 5472 bytes
SHA-256: 3c52e426cb5b54651275ae49f3b2ad23fda37103b757ff059bfb73bb89d95b0e
font_01_sfnt_off00007c56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C56 10680 bytes
SHA-256: 01246614f0f5dde4f17a9baa95aa5cfbe0721982e75b2e4c0ed022fd6655ed8e

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