Malicious PDF — malware analysis report

Static analysis result for SHA-256 b35590a305fe44b8…

MALICIOUS

PDF

42.2 KB Created: 2020-08-07 04:46:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a1296c06c6fb4ad75f67490e4ee499f SHA-1: 19c736173acfbf0277ce747f90c2b0f6e5e51492 SHA-256: b35590a305fe44b8f32eb57620a72533559b00a7910dfc02872c85f053c37b18
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. This indicates the document's primary purpose is to redirect the user to malicious infrastructure. Additionally, a PDF link farm heuristic fired, suggesting the document is part of a larger SEO poisoning effort to distribute malicious content. The embedded URL in the document body confirms the presence of the redirector.

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=les+contes+d+hoffmann+pdf In PDF document text
    • http://files.slsfnc.com/uploads/1/3/1/3/131379732/rimilazu.pdfIn PDF document text
    • http://barirol.awakenteenleadership.net/uploads/1/3/2/6/132681670/6954362.pdfIn PDF document text
    • http://daxos.bedfordhikingclub.com/uploads/1/3/0/9/130969742/144563.pdfIn PDF document text
    • http://files.aggicrafts.com/uploads/1/3/1/4/131437225/56c6d27c9b0e3.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/1/0429/5933/9674/files/jeloredusonizebikanojasof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/nodawofudunadikerob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8000/8355/files/zanopuravi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6274/7548/files/fugabomabaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7522/1157/files/5472765402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2222/9397/files/58942035007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8846/8376/files/vufobewapefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3318/8759/files/kedofofusibibaxeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1207/8243/files/sawoxaduzanufifamixinoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6251/8182/files/94016816789.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_off0000647f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647F 5208 bytes
SHA-256: ebfb2e96b77f1bd072a602c027ea0c70adc2e3861fe493f3a086e55848dedf71
font_01_sfnt_off0000761a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x761A 11900 bytes
SHA-256: 7cbb65454f52984901ad9fe381a096e18d4a8eeda8a5514ff9f9d5baf67ed4ce

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