Malicious PDF — malware analysis report

Static analysis result for SHA-256 8464a6f1c8d40118…

MALICIOUS

PDF

46.5 KB Created: 2020-08-18 15:54:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce568a80182d709056025050458af6ab SHA-1: 603e1e544fd8c721b4e2b5c86b80738052773840 SHA-256: 8464a6f1c8d40118f925017fa155c9d300ae8f3dac684bb3493fa84fa6d8528c
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL, 'https://ttraff.ru/pify?keyword=ebook+reader+application+free', is identified as a malicious redirector. The document body also contains this URL and other Shopify links, suggesting a phishing or scam attempt to distribute malicious content under the guise of free downloads. No scripts were extracted, but the high number of malicious links indicates a strong intent to redirect users to harmful sites.

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=ebook+reader+application+free In PDF document text
    • http://zudekun.clarkstownreformedchurch.org/uploads/1/3/1/1/131164250/a8b084a7dc.pdfIn PDF document text
    • http://files.create-diy-online.com/uploads/1/3/1/6/131606262/kizojoxo-mifufojegaxuf.pdfIn PDF document text
    • http://gisafati.epworthumclouisville.com/uploads/1/3/0/9/130969633/3432341.pdfIn PDF document text
    • http://files.blucalinc.com/uploads/1/3/1/6/131637695/8291800.pdfIn PDF document text
    • http://femusu.benbernous.com/uploads/1/3/0/7/130739978/79105f.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/1/0431/5398/1589/files/ielts_writing_task_2_simon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/fomegewaramazasulefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6706/4998/files/vapawixaditivilalewomexew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/core_stone_embers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0544/3237/files/fuvedabawazupuwadatavod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/nitanizit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6735/9900/files/tafutiginubepitane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/chromium_os_iso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8191/5802/files/nelibezuwarewamene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/gesanujewoj.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_off000077f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F2 5132 bytes
SHA-256: 1ac49b4a6ef68bbcefc7a814816209747be960babf9f765161f1f204eaa5abb3
font_01_sfnt_off00008970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8970 10388 bytes
SHA-256: 23603775d49a13ba3ec5cc0d74cffd222f77a0da8e90b3d539a62f028601a374

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