Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f6bdef57118176b…

MALICIOUS

PDF

36.3 KB Created: 2020-08-11 14:29:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ea1685688c9c92313e83cbae06855c1 SHA-1: b3afbbcb4e8adf3389e70629b66913b073b7a73a SHA-256: 6f6bdef57118176bb5181bfc63e7bcddbfcecafc89e48ca4855ffdb583edbda2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, also contains the same redirector URL and multiple Shopify-hosted PDF links, suggesting a link farm or SEO poisoning tactic. The primary malicious URL identified is https://ttraff.com/pify?keyword=handbook+of+ecological+economics+pdf, which is likely used to distribute further malicious payloads or lead users to phishing sites.

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=handbook+of+ecological+economics+pdf In PDF document text
    • http://files.allseasonsironworks.com/uploads/1/3/1/0/131070230/xoguniduwaget.pdfIn PDF document text
    • http://files.va-sg.com/uploads/1/3/0/9/130969357/f9274d888565e.pdfIn PDF document text
    • http://files.computerconsultingnetworks.com/uploads/1/3/1/4/131453645/8207838.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/1/0440/2089/1798/files/39290433932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/wenofovasezanesokogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2610/1910/files/49804887310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6142/files/vipiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5332/5224/files/berliner_platz_vk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6784/2459/files/31844100680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9704/7718/files/govamurajutarilojepoloj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2290/7554/files/43022199874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7945/4111/files/air_waybill.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4928/6813/files/working_of_ammeter_and_voltmeter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6728/4379/files/arthashastra_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6189/4565/files/rafanemidisulo.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 4

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_off00004ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE7 5544 bytes
SHA-256: 5dafb929a1e57af034a825e8831b4e4cbb8bd68b4eebd5c75b831cb2eda26578
font_01_sfnt_off000061b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B5 10212 bytes
SHA-256: c8dbfe255a0390f31b91ee25fd75507b429a22ed7fef292144c0136a933fa86a

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