Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ef20c3a19eaf723…

MALICIOUS

PDF

40.8 KB Created: 2020-08-12 14:56:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0570dd9551fbb15b03a46617a8369e6b SHA-1: ea4ea125e3f569049e3706abdc84cacc3cd08c73 SHA-256: 6ef20c3a19eaf7233cd0b5b49b5768069b632240c59a0ca05a53c9ac51c6875f
194 Risk Score

Malware Insights

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

The PDF contains numerous links to redirector infrastructure, specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains URLs that are part of a link farm designed to drive traffic to malicious sites. The primary malicious URL identified is https://ttraff.cc/pify?keyword=%25C3%25A7eyiz+listesi+pdf, which is used in conjunction with other URLs that appear to be part of an SEO spam campaign.

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=%25C3%25A7eyiz+listesi+pdf In PDF document text
    • http://sigisij.moosalamooultra.com/uploads/1/3/0/8/130873951/89b8dac.pdfIn PDF document text
    • http://files.myroamingspirit.me/uploads/1/3/0/7/130776483/gilezekejef-rusen.pdfIn PDF document text
    • http://files.novelsf.com/uploads/1/3/1/4/131483550/mataxopawowojuvuba.pdfIn PDF document text
    • http://siriro.learningforlittlepeoplepreschool.com/uploads/1/3/1/4/131453574/b364f504.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/1/0431/5699/6247/files/64522709992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6416/3490/files/73089610731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/xujojaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2186/8960/files/d_d_3._5_sorcerer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1948/2774/files/litumarefudevuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0765/5579/files/70343416196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64255738852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4797/5062/files/1975_ford_f100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/80550520965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1464/2069/files/summary_of_apartheid_laws.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9063/2101/files/wordly_wise_3000_book_8_teacher_s_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3426/4231/files/5525645443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9471/1203/files/bovedutuxibawinurebogebi.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 8

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_off000060d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D8 4972 bytes
SHA-256: cef107c6ff61702fa83cda5fca82d1da1eeae78aef143caa650613055939ca8e
font_01_sfnt_off000071a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71A4 11252 bytes
SHA-256: 143ad80b06a3cb16d24fc9d650f767184aa3c39bc927fbd51accad555cd99e20

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