Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dce486f2ea8ba52…

MALICIOUS

PDF

36.8 KB Created: 2020-08-03 04:58:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e150b5be12c1e956271b3c3c2ce31059 SHA-1: 2dbfc761ef76dfbbc6336498e371f5d61fed9fc0 SHA-256: 4dce486f2ea8ba522f3082332e1ae10802f58e727d84e2e5ee078230f0eab31e
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains the URL 'https://ttraff.ru/pify?keyword=200+times+5' which is associated with malicious redirector infrastructure, and numerous other links hosted on shopify.com and other domains, forming a link farm. This suggests the primary purpose is to lure users to malicious 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=200+times+5 In PDF document text
    • http://files.discoveryelectricbikes.com/uploads/1/3/2/7/132740375/4424646.pdfIn PDF document text
    • http://files.sgroiwealth.com/uploads/1/3/2/8/132814476/6288882.pdfIn PDF document text
    • http://valomixo.inkbenders.org/uploads/1/3/1/3/131383775/dawolixodivoje.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/1/0434/9617/7816/files/kofotalabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/junexunivitimewut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/28665969428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/get_it_right_glee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/risiketodaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/79776440838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/57244732901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/xizadibotomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/1683430903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9911/2095/files/3862405275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3789/1482/files/convert_open_office_to.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 6

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_off000053c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53C3 4796 bytes
SHA-256: 8984e108c1e0442dfed08996bb948976ff71139838c90922b1a62b61edc88cd1
font_01_sfnt_off0000640d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640D 10228 bytes
SHA-256: c589b9e99befd0cb0c2b76a109e606a4cb80ac842ffa3e2d805b58a3c18232b5

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