Malicious PDF — malware analysis report

Static analysis result for SHA-256 082d2f1aa805be70…

MALICIOUS

PDF

40.6 KB Created: 2020-07-31 21:31:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78c305f5b1f35e184e1cfa3ac1d66716 SHA-1: 70c880c95b239bc55cbc373ff6bbc3e1bcc83d38 SHA-256: 082d2f1aa805be709388c792c89287f3b04d6a1b463d21e2fb3e70b64f564a4c
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The ML classifier strongly suggests maliciousness. The document body, though heavily obfuscated, contains the redirector URL and references to other PDF files, likely part of a link farm designed to attract traffic and potentially deliver malware.

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=kobra+red+dot In PDF document text
    • http://files.imarihardon.com/uploads/1/3/1/4/131406274/6d1d3fcd243.pdfIn PDF document text
    • http://files.tastytemptationsllc.com/uploads/1/3/2/6/132680994/1304423.pdfIn PDF document text
    • http://files.jurneyvetneuro.com/uploads/1/3/1/3/131383838/vifiwagiz_disesodubux.pdfIn PDF document text
    • http://files.normansglutenfree.com.au/uploads/1/3/0/7/130738974/xonunow.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/1/0431/6001/0906/files/sotekajezotudilitupam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6221/5324/files/gijumuxevuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6032/1691/files/4609498443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8411/8184/files/fasume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6375/4404/files/9496959279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9729/2949/files/lavizawarad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4410/1544/files/38285209724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5108/0090/files/gorozeburolurifex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1969/7308/files/77999284663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/nifotomubali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8680/7201/files/genesijejazul.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_off000062fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FA 4720 bytes
SHA-256: 38e4d816d88f183a8e3356bbe104f907eca2b72eb9c69d89c18fa6dd6bcd1be9
font_01_sfnt_off00007310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7310 10248 bytes
SHA-256: 3ecf0b7b2e809f0ab55b32570906cc50b32791d1e9df3f103b6a8b314a1c4e46

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