Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec0f3f2ae3f0d6df…

MALICIOUS

PDF

48.1 KB Created: 2020-08-10 01:57:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ee2dda930a37d7017b848a14106cc826 SHA-1: 627548634a9da6436e5c5d89a7d430f955bcc7b0 SHA-256: ec0f3f2ae3f0d6df232cad6328fb509cf48164a53291ee217fc9c72b0b9d5d13
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link to 'ttraff.com' which is designed to lure users into downloading further content. The document body, though heavily obfuscated, contains the same URL and references a 'speak fluent english pdf download', indicating a social engineering pretext. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm tactic to improve search engine ranking for malicious content.

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=speak+fluent+english+pdf+download In PDF document text
    • http://files.bjustudentlife.com/uploads/1/3/2/6/132681836/3687803.pdfIn PDF document text
    • http://files.gatheringoftribalnations.com/uploads/1/3/1/3/131383892/6475722.pdfIn PDF document text
    • http://files.lisaorrart.com/uploads/1/3/0/7/130776673/dumon_lejujil.pdfIn PDF document text
    • http://files.careyparanormalresearch.com/uploads/1/3/2/7/132712127/3451233.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/1/0430/2356/4957/files/ham_radio_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7286/3899/files/33079911732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4746/0768/files/binofafemokew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8699/4855/files/rmv-_1_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4872/2851/files/62329163069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wanojexabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/sanuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2902/0317/files/88016325336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/59385002131.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ed0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED0 5468 bytes
SHA-256: 56ca5f6ebf9962da5a34c3090500add635b52a6e728e96f5292f2d691e9ace65
font_01_sfnt_off00008177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8177 3824 bytes
SHA-256: 854415fa4b5d1129a75e57baba8b78f4c0f1b5b45c5bed1583fcd1ba238be4d6
font_02_sfnt_off0000902b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x902B 10352 bytes
SHA-256: e1f30ab8928ca6ecac80a4771cc67d1220f909a418b88b41bd3adf5322b34c54

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