Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e8d1fba66b47c0f…

MALICIOUS

PDF

44.2 KB Created: 2020-08-12 17:27:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe797c03a0672f5e119fa599c6f85898 SHA-1: 82b06b8faf51f9af595c7b6aa5748fefa5eda916 SHA-256: 9e8d1fba66b47c0f0b664e24f23bfc313a11a2cd3e1326542b7f1128465fba4f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) identified as malicious. The document body itself is a collection of URLs, suggesting a link farm or phishing lure. The primary malicious URL is https://ttraff.cc/pify?keyword=metabolomics+introduction+pdf, which is likely used to redirect users to a malicious site. No scripts were extracted, but the PDF structure and link farm indicate a social engineering attack.

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=metabolomics+introduction+pdf In PDF document text
    • http://rigetol.jreschkeart.com/uploads/1/3/0/9/130969426/rewamigutukova_linufuvoja_surujezi.pdfIn PDF document text
    • http://files.butterflyposturalchair.com/uploads/1/3/1/1/131164176/ladev.pdfIn PDF document text
    • http://files.curlyhorsevermont.com/uploads/1/3/2/7/132741241/vamamopuranib.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006d74.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006d74.bin)
    • https://cdn.shopify.com/s/files/1/0434/3644/1752/files/chicago_building_code_violations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/mozovufapofexini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7587/8564/files/71042148472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8276/6750/files/bartok_viola_concerto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7467/3050/files/how_to_write_bytearrayoutputstream_into_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/16691268309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7976/2073/files/60260379050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7909/7758/files/mefelugeruguwakidunadever.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2897/0647/files/vagabat_gita_bengali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8347/2802/files/82886410101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/tapumunesaxezakejib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8982/1845/files/59605078276.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 extracted file (font_00_sfnt_off00006d74.bin)

Related samples 8

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_off00006d74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D74 5448 bytes
SHA-256: ed35521c45442ca4e48b442f419f644f1378b51b1f2ebcdd90aecc5f05548af2
font_01_sfnt_off00007fe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE6 10716 bytes
SHA-256: 2f25682dc6a0d2b4cbcdb0de6d9093dc8a7da03e8d5597cc1996f0f24c1e5f10

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