Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8e03f85f778bc5a…

MALICIOUS

PDF

45.7 KB Created: 2020-08-07 16:24:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 129c0ecd7b61a8c7daa6fe5d0ac5b517 SHA-1: 1281877b35ed1a070c0f8e52295ae61412c88b2c SHA-256: d8e03f85f778bc5a4f45c9ec4ae9b029454b058b834e8097b23824b892081387
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains this URL and numerous other links to PDFs hosted on Shopify, suggesting a link farm or redirection strategy. The ML classifier strongly indicated maliciousness, supporting the conclusion that this PDF is part of a phishing or redirection 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=que+es+el+autoestima+pdf In PDF document text
    • http://files.prestonsburgchurch.org/uploads/1/3/1/3/131397940/6c72b807ff1c.pdfIn PDF document text
    • http://files.grecianmarket.com/uploads/1/3/1/4/131410818/bozuwozewedi_zukefidiriweduj_rebafipufu.pdfIn PDF document text
    • http://files.geistgang.com/uploads/1/3/0/7/130775856/mupinesab.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/1/0428/4396/3555/files/40842084019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5553/8595/files/rexetewogiwuzixaxopabunoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7462/6470/files/const_apikey_fortnite_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/favunubasaviwujekegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/bomufixugekopusavedabomis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7777/1162/files/99236031517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/gazisifipeweni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0353/files/ruvovegetigox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6829/1232/files/73734302005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5876/4696/files/american_english_phonetic_chart.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 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_off0000743c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x743C 5152 bytes
SHA-256: 24eae1976478bc099732839b4373a728afdd49d9ccedbf1630e5521e153827f4
font_01_sfnt_off000085b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B5 10660 bytes
SHA-256: b3ec16b11c427c525e92ef794e45e348a59faf66584c7322972b067596defe76

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