Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bd8e19845ad509d…

MALICIOUS

PDF

44.4 KB Created: 2020-08-02 15:54:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4924a5a2f14710c5b8f91c6a981409d4 SHA-1: 6abc56541b13d515310f5401d2568bf5bf7a12cf SHA-256: 2bd8e19845ad509d1b27c1a8840872b3280591064ae948916c24f0055abc3a55
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector heuristic. This suggests the document's primary purpose is to lure the user to a malicious site via the embedded link.

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.com/pify?keyword=investment+valuation+damodaran+pdf In PDF document text
    • http://files.erasor.org/uploads/1/3/1/4/131438073/7b41b4f798985f.pdfIn PDF document text
    • http://files.thedantreks.ca/uploads/1/3/0/8/130874633/a5c44287.pdfIn PDF document text
    • http://files.bridgehousesarc.org/uploads/1/3/1/8/131858481/xagez.pdfIn PDF document text
    • http://files.jackblairgray.com/uploads/1/3/2/6/132695714/05c633.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/1/0432/4848/4507/files/30813487209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6621/3031/files/7598363672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84770620138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5480/9756/files/difanewazopozizibov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0207/6070/files/52747160914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7728/6565/files/83794927371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/94971007639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1184/0927/files/paxuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9401/6157/files/22202612396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5793/8581/files/lopegizodibadadunenowamim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5135/0166/files/54776479408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7752/3861/files/wow_legion_druids.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8759/3632/files/welaxutemiwe.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_off00006f08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F08 5184 bytes
SHA-256: be0ddfd29ba1607465691df3666f7506ddf421c7733b5f13eed8d34c8ae53522
font_01_sfnt_off00008095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8095 10716 bytes
SHA-256: 40d501a26699adb17b91e875c54ad23e81e57339608d18dd9a9868c93b9ef1dc

Open this report in the interactive analyzer, or submit your own file for analysis.