Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7ed2beba2043c60…

MALICIOUS

PDF

31.8 KB Created: 2020-08-18 19:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dc45c82eac639c4df79c45d91fa3a2c4 SHA-1: 39060ed6b7a00bc01efd534eceeabfcbed708a59 SHA-256: b7ed2beba2043c60ab0df5de17e81ec8623245550410b2f2112687714877e43c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector link to 'ttraff.com'. Another critical heuristic identified a PDF link farm, with many links pointing to Shopify domains. The ML classifier also flagged this PDF as malicious with high confidence. The document body, though heavily obfuscated, contains the malicious URL and references to other PDF files, reinforcing the link farm and redirection attack pattern.

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=lattice+math+template In PDF document text
    • http://files.thesummiteauclaire.com/uploads/1/3/1/1/131163684/sapitositodufewidot.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/1/0449/7106/5503/files/titutonobesaradij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3131/4077/files/bedewegedez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6704/0163/files/gifoxenug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/programa_para_unir_offline.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7431/3633/files/7226773480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2132/8807/files/debubokubikadiseso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8253/7365/files/install_dmg_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/18236374637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1284/0872/files/ontological_assumptions.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_off00004268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4268 4840 bytes
SHA-256: 88a95b3a592a591d8dda95d23f3f73685ae0bbcae801612326edebfc10b4713b
font_01_sfnt_off000052bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52BC 9508 bytes
SHA-256: 9c83935ce0aade52433fcf9219e19f7e38ade437c5c70cb8c1025bab1fb4023b

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