Malicious PDF — malware analysis report

Static analysis result for SHA-256 581f77fdefb669ff…

MALICIOUS

PDF

46.4 KB Created: 2020-07-30 21:49:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a04e7b444128962619b0a5bac044468 SHA-1: 41b6bdbe152e3fb937ac155f1f2eebe308d431f0 SHA-256: 581f77fdefb669ffcd3e34ea2ba8a1d1e42e3cda912723956e7034386ca3b719
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is part of a link farm designed to redirect users to a large number of other PDF files, likely for SEO manipulation or to host further malicious content. The document body is heavily obfuscated, preventing a clear understanding of its direct intent beyond the malicious link.

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=brand+identity+pdf+2020 In PDF document text
    • http://files.theclaytonconnection.com/uploads/1/3/2/6/132682897/wilidajo.pdfIn PDF document text
    • http://files.caringservices.org/uploads/1/3/1/4/131454771/83d3a.pdfIn PDF document text
    • http://files.kratomvendorgrade.com/uploads/1/3/0/7/130738568/gefiwox.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/1/0429/0795/9452/files/wenupotesefapirem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1020/1499/files/97995500560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2599/5688/files/tukaguvibotaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nagexonulelaxefirulilona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5475/9065/files/bewirebikoxup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4286/4289/files/31161993572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4561/5766/files/8264183826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4042/files/futilobodilewojowivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5490/8071/files/febobunekolixalesokifenus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6900/6236/files/sadajasax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2766/8890/files/46842331571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9055/8620/files/gaxijekepovivakuri.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_off00007867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7867 4928 bytes
SHA-256: 6d247ccb74086f9d806aa264d9b496e341c5ccc18206d8fe9dc8903a13b1a366
font_01_sfnt_off00008935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8935 10352 bytes
SHA-256: db7926ce1965a1672daf5684109ffb3b03acbb0a254d466ffe017af54429d7e8

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