Malicious PDF — malware analysis report

Static analysis result for SHA-256 6705585e9e439bba…

MALICIOUS

PDF

42.8 KB Created: 2020-08-27 20:24:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0682e64ea63ffe6cfd0d5354697bd90 SHA-1: 2bc5afad62f11be452d65420e77517214ec209d6 SHA-256: 6705585e9e439bba3c949d25c713e2379ffc4967f2af11ccb774297b05430f4a
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to the malicious redirector `https://ttraff.com/pify?keyword=shell+shockers+cool+math`. This indicates an attempt to direct the user to malicious infrastructure, likely for phishing or to download further malware. The ML classifier strongly supports the malicious verdict.

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=shell+shockers+cool+math In PDF document text
    • http://files.adiyadoni.com/uploads/1/3/0/7/130739470/6918311.pdfIn PDF document text
    • http://files.darkhorsespirit.com/uploads/1/3/0/9/130968961/6f0af.pdfIn PDF document text
    • http://files.strideaheadcoaching.com/uploads/1/3/0/7/130740118/zisix.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/1/0428/0041/4883/files/81853346423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4152/0790/files/56463623496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8939/3816/files/catalan_constant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3437/7377/files/wbcs_optional_anthropology_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5891/2662/files/1616271933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/85430138835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/jukewibadebupovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7500/files/80811746427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6877/4814/files/nukod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0101/1614/files/91393763537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5831/4912/files/zizalogumogaletutoxolis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4895/9142/files/vw_owners_manual.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 5

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_off00006a41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A41 5208 bytes
SHA-256: c4431d95b09b403a2d877a40504fdac1e5638d5e3e6d6864ce69e477d49ecd7c
font_01_sfnt_off00007bc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BC7 10128 bytes
SHA-256: 2abd3d6f76c6c363dd4e8e393fcda0a41f861bf8b30c7e17b354514741c89d4d

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