Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b6665c5710d63c4…

MALICIOUS

PDF

40.6 KB Created: 2020-08-08 04:10:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0c6e5cbecfbe10d033a61f57926b147 SHA-1: 11db4a7ac9b753254f74ea9ee7fab183de853d2e SHA-256: 6b6665c5710d63c46c4fc4658edb9cfc64c319265e58145d06cf1ac1d8e594c2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous links designed to appear as legitimate document downloads, but they lead to a redirector infrastructure. The primary redirector URL is https://ttraff.cc/pify?keyword=geographical+information+systems+and+science+pdf, which is flagged as malicious. The document body itself is heavily obfuscated and contains embedded URLs, suggesting an attempt to disguise the malicious nature of the links. The ML classifier 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=geographical+information+systems+and+science+pdf In PDF document text
    • http://files.crude-inc.com/uploads/1/3/1/8/131871569/27518a50e.pdfIn PDF document text
    • http://files.vanessabenson.com/uploads/1/3/0/7/130775743/3058d.pdfIn PDF document text
    • http://files.runforthefallennh.com/uploads/1/3/1/6/131607010/sevuvogakakusu.pdfIn PDF document text
    • http://files.thomashossie.ca/uploads/1/3/1/8/131871643/c21e2a5.pdfIn PDF document text
    • http://xibemaja.weathersteel.com/uploads/1/3/2/6/132683188/kekexotas_dalurazuk_womovokomosa_bazadafikemoxa.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/1/0432/9524/4441/files/business_report_writing_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/nizagavujadijef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/jixewutaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3772/0733/files/40444272405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3119/0952/files/dizewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/85626723715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7877/9029/files/fizesopuwetuvuvixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8856/7706/files/8ball_and_mjg_album.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4503/files/61884660632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6787/4207/files/78114920831.pdfIn PDF document text
    • https://www.cancer.gov/coronavirusIn 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_off00005f7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7E 5704 bytes
SHA-256: 61c86ea9f12524c54323d582dde0b95004c03b2fea36825ce0d4b7fea7b1d234
font_01_sfnt_off000072c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C6 10132 bytes
SHA-256: 4f9af352fd715c382abdb868d54b79ccf9e5f6c2bed4f0449a823d64bef7d1d7

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