Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1857ee2cb7352ee…

MALICIOUS

PDF

39.5 KB Created: 2020-08-20 23:11:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2376740a89e6f150ce28a559b580a87e SHA-1: d245ee2ff1996e61a7cb41b754b1e46d5233dbc1 SHA-256: a1857ee2cb7352ee080d2d61abc7e5097a31d23cf92b1df5fc2a8ea88640d271
202 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains, but one critical link to 'ttraff.cc' which is identified as a malicious redirector. The document body, though heavily obfuscated, contains the target URL, suggesting a lure to download potentially malicious content. The presence of a visual download button further supports this phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=bachianas+brasileiras+no.+6+sheet+music In PDF document text
    • http://kibezixon.mzsacredhealing.com/uploads/1/3/1/4/131453872/5855726.pdfIn PDF document text
    • http://rutumoz.nqta.org/uploads/1/3/0/8/130874246/6800585.pdfIn PDF document text
    • http://files.saintshaven.org/uploads/1/3/0/8/130873927/3964925.pdfIn PDF document text
    • http://jijaboj.mcfieldassociates.com/uploads/1/3/0/7/130738970/4361059.pdfIn PDF document text
    • http://files.flca.ca/uploads/1/3/2/7/132710659/0c562a3949.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/1/0432/8102/3140/files/javusexij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/4757/9811/files/supreme_swr_pipes_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/ketopiwidupanufozavojetor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/cricket_highlights_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35535883354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/96269560560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8604/4570/files/10422906143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4365/1735/files/89278576820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6403/3429/files/94451913235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3581/9164/files/vurusarizalot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0558/1211/files/business_ideas_in_telugu.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_off00005c0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C0A 5416 bytes
SHA-256: 66741df9e142c96d59b0f88a916609ef04e47875ae925ce37c20999d2db36957
font_01_sfnt_off00006e3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E3C 10192 bytes
SHA-256: 7d484f5282cbdd19aa4ef63ae1aaec75afee6ff0a78a473358248ba3fb63ab1a

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