Malicious PDF — malware analysis report

Static analysis result for SHA-256 858a59c0344c3592…

MALICIOUS

PDF

41.2 KB Created: 2020-08-06 05:32:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4eb87a732d4e0aebff9efd980da49dfb SHA-1: 320d320dfceb12a4ed7577df67a3a4d42783918b SHA-256: 858a59c0344c3592bccf2ca69d74a53592593141287343611d63f89c9cb07f5f
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The primary redirector URL is https://ttraff.com/pify?keyword=carte+d+invitation+mariage+pdf, which likely leads to a malicious payload or phishing page. The document body, though heavily obfuscated, contains similar URLs, reinforcing the 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=carte+d+invitation+mariage+pdf In PDF document text
    • http://files.nationalpolygraphacademy.com/uploads/1/3/1/3/131379181/sonafojiki-bufinajorisotol-vawiwab.pdfIn PDF document text
    • http://files.aptecintl.com/uploads/1/3/1/4/131454696/c44c62fe598.pdfIn PDF document text
    • http://files.compassionatepathways.org/uploads/1/3/0/7/130775195/fd70bf150548.pdfIn PDF document text
    • http://files.latinahilara.com/uploads/1/3/1/3/131379894/nejofemuzufopat.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/1/0430/8389/0850/files/75868173114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7345/files/novosumezaged.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/4640180338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wajomuxufukurojudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/boosting_in_machine_learning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/dabal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4155504299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kovutuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9854/6084/files/76123116811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/tcp_ip_sockets_in_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0969/files/alveolite_allergique_extrinseque.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 6

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_off00005a0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A0A 5116 bytes
SHA-256: 4d94f341fccfc2c6ab6cf8c747f5b5b190c6d591bbf548b9ef2dd0fc73217a86
font_01_sfnt_off00006b6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B6B 14316 bytes
SHA-256: d11a78785aae7dc0c88496bc1c84480995c2163126ac50107bcffaee902b4839

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