Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4712eff6873e316…

MALICIOUS

PDF

43.4 KB Created: 2020-07-30 18:51:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce6d9b7bbf742b99f5cffaf80c8ab3dd SHA-1: 2ca11ec67ecdcbd284823b8d052fdf737dce7a44 SHA-256: d4712eff6873e316c30d10833fab6d8e97b7346557804d8d1dc8205f18eead5f
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a redirector at 'ttraff.cc'. This suggests a phishing or scam attempt, likely using a 'capacity building proposal' lure to entice clicks. The ML classifier strongly indicates maliciousness, and the presence of numerous external PDF links points to a link farm or SEO manipulation tactic to distribute the 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.cc/pify?keyword=capacity+building+proposal+pdf In PDF document text
    • http://files.awakenteenleadership.net/uploads/1/3/0/9/130969923/9379379.pdfIn PDF document text
    • http://files.highergearcoaching.com/uploads/1/3/2/6/132682030/9895675.pdfIn PDF document text
    • http://files.williamstreetcoc.com/uploads/1/3/0/9/130969485/wipegu-mibuv-jukumiginir.pdfIn PDF document text
    • http://files.kriswiltse.com/uploads/1/3/1/6/131606248/7043701.pdfIn PDF document text
    • http://files.payc.ca/uploads/1/3/0/8/130814227/3dbc25.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/1/0436/4242/1398/files/gapurugitujoduzor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/6910565719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5920/7579/files/83887300344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/61554376517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4916/4693/files/mowuzedumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2534/9283/files/80399538924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/zubanerif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7763/1126/files/69033028983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1724/6632/files/punekadifidamaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4816/3733/files/99252492899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0357/5447/files/fubixibu.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 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_off00006c1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C1D 5352 bytes
SHA-256: d4fbb2acbcd3fb2921ef91e47eea062d5342ee52487d1ce0f6efb5e33940affb
font_01_sfnt_off00007e53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E53 10052 bytes
SHA-256: 16b8e94076ab81fca3f41cd87ca4e6f7dae7f5ce986fa922d2c4d27cf5db8f22

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