Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f7498599e13c6ff…

MALICIOUS

PDF

49.2 KB Created: 2020-08-01 14:30:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d9a7acc2418e37744d2c500444ecb21 SHA-1: 02aa49832c0d09c02efd9a669bd951ce88bcc0f1 SHA-256: 6f7498599e13c6ff664dfbaa5009e0bf250755579eff2d19daf38446552eeea4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to direct users to harmful content. The embedded URL and the document body explicitly reference the redirector 'ttraff.cc', which is flagged as malicious. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=transparent+color+code In PDF document text
    • http://files.montclairschoolsdata.org/uploads/1/3/0/9/130969545/jimug.pdfIn PDF document text
    • http://files.alaog.net/uploads/1/3/0/7/130739385/59181fc5d14fe2.pdfIn PDF document text
    • http://files.thegardenrecipe.com/uploads/1/3/1/3/131398145/widufijudilesi_xusesobojore_damavamenegi_xubekatelow.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/1/0435/2756/9576/files/9087414825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7063/6710/files/banakasisefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7592/8215/files/85647137472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/76568897794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2118/9788/files/temodopurobifaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/40861444425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8345/4872/files/64520370467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4959/8632/files/fokusitasumara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4062/8136/files/tidebemolidevemonaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1459/4464/files/kowipajejibuxarorol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7873/7302/files/basic_interview_questions_on_electrical_engineering_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/14639481880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9105/9097/files/bosixawajolugowijijaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/zarugoginoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2682/files/90398703615.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 4

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_off00007543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7543 5016 bytes
SHA-256: 48764cf84bf402591ff7b7226f2bd89486c369da42e99983eee842b8e8cfb250
font_01_sfnt_off0000865c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x865C 15592 bytes
SHA-256: 95efa4560e588530410989bb1c9db57c1eefa1e6c1ebabf7bc9824a099af92f1

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