Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df99f3fd3dfa58e…

MALICIOUS

PDF

32.8 KB Created: 2020-07-31 17:26:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 17a7e913f58c1edc19b1799f9561e83c SHA-1: 9903236f763264f38b68df1c1191f08046d5e354 SHA-256: 6df99f3fd3dfa58e67e2ebcdb1a2ae66d93109638faa8fca047c25b53d9e9361
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 pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Destin weather radar' and the redirector URL, suggesting a lure for phishing or a scam. The presence of numerous links to external PDFs, including benign ones on Shopify, indicates a link farm strategy to potentially obscure malicious activity or improve SEO for malicious content.

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=destin+weather+radar In PDF document text
    • http://files.fhpsc.ca/uploads/1/3/0/8/130814195/diredemapefik.pdfIn PDF document text
    • http://files.monikasteinhoff.com/uploads/1/3/1/0/131069950/807580c.pdfIn PDF document text
    • http://files.travrocks.com/uploads/1/3/1/8/131871618/9318461.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/1/0437/4344/5141/files/zibepasilevafisututig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6915/3181/files/zusom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3027/3435/files/wazeberusobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3785448733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3161/7945/files/muvozajivomufisawesovune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4742/0057/files/31791578847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9540/0356/files/niwafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7514/1794/files/pefuravofanolojebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3516/4835/files/49848068945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3590/1602/files/33171358994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/zibedirarafenuvutozis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7106/9594/files/siguwopusojasevironisune.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 7

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_off00004646.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4646 4972 bytes
SHA-256: fdfc3e5e10ea913dbe6f02819f9d5c07a64c9c510334c647af8c3df2a443cb3d
font_01_sfnt_off0000573a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x573A 9204 bytes
SHA-256: 840252a5d4aeb1eb491bd3bce0b44e2eda5b53431adf316564d310b2bed9a8bf

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