Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd0c07b31f0b0570…

MALICIOUS

PDF

44.0 KB Created: 2020-08-02 21:06:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d8f51784db8d4201e23dc81b3f7cf63 SHA-1: e59652160d73f541548b1fdc329d331c9be058c9 SHA-256: dd0c07b31f0b0570b7822ea4c09056f4980d06a8769881b88c21662980d96429
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector link to 'ttraff.ru'. Another critical heuristic indicates a PDF link farm, suggesting an attempt to distribute malicious content or engage in SEO manipulation. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the 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.ru/pify?keyword=soma+ark+simulation In PDF document text
    • http://files.moriahit.com/uploads/1/3/0/7/130776225/xorozoxekedu-wewuxubewog-labujoj.pdfIn PDF document text
    • http://files.maidoecuador.com/uploads/1/3/1/8/131871568/pebaxuz.pdfIn PDF document text
    • http://files.jouhlan.net/uploads/1/3/0/7/130739654/sixaxukake.pdfIn PDF document text
    • http://files.littlebearlabradors.com/uploads/1/3/1/3/131383775/9542745.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/1/0433/1523/2921/files/41868989398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6486/0575/files/kuwufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0381/3781/files/warofodizix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62374455636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6052/7253/files/jumerol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5064/6169/files/kafka_reset_offset.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1507/7022/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9770/1032/files/60765605941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2417/0664/files/dopopumisileni.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_off00006fab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAB 5000 bytes
SHA-256: 863e40a4211b6fd141078eb527ab866940e6055c601ff49bf166d4105daa376b
font_01_sfnt_off00008090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8090 10144 bytes
SHA-256: 8b320629340cf0307a7b5b6f0b9d415befa7b7bd6bca1005946c7956c4679026

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