Malicious PDF — malware analysis report

Static analysis result for SHA-256 7feb8e034ffafbec…

MALICIOUS

PDF

39.7 KB Created: 2020-08-20 04:59:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48665e685d94e903c12d9eda6d71d99b SHA-1: 5a54a12c661771a815b7aa2553dc8478043da45e SHA-256: 7feb8e034ffafbec2456be124bda1819132a6066e68311401a8525d41120fa6f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document's content and structure suggest it is part of an SEO link farm designed to trick users into clicking malicious links under the guise of legitimate downloads. The ML classifier strongly indicates malicious intent.

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=how+to+call+over+wifi+android In PDF document text
    • http://files.joyfultreasureschildcare.com/uploads/1/3/1/6/131606186/33bd10ff469b.pdfIn PDF document text
    • http://files.melisacadell.com/uploads/1/3/1/6/131606491/9ea5bb53.pdfIn PDF document text
    • http://files.heathercorballybryant.com/uploads/1/3/2/8/132816066/5221430.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/1/0438/1048/8477/files/mixunul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7180/7391/files/16469700147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/91161573794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3776/5282/files/45076409882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2703/7336/files/kewodutupotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5431/3122/files/mathematics_grade_6_curriculum_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3066/7673/files/vejow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wojifuxazax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bagubiginapir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63529720688.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 1

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_off00005eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EED 4952 bytes
SHA-256: a02d15de16b429bdb308c539daef62196d7ec3876fa089a045ac785c7de88d82
font_01_sfnt_off00006fe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE6 10024 bytes
SHA-256: ca6d334f91ff19a1e59ce3cfa45b2a920efade77d91ca3cda0a6b96d4d814c77

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