Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb063ea6fe880612…

MALICIOUS

PDF

56.0 KB Created: 2020-08-05 16:40:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62d6f907d3d5360c9efdc8e8a76ba4e4 SHA-1: 6d12c6fe5078dbb870f0b02ddb79635d55e87124 SHA-256: cb063ea6fe880612ed57579d15cbe057ef2a383443a255869a70ea3db21f92a6
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL `https://ttraff.ru/pify?keyword=burnt+norton+ts+eliot+pdf` is directly linked to this malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, suggesting an attempt to manipulate search engine results or distribute content through a large number of links. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the finding.

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=burnt+norton+ts+eliot+pdf In PDF document text
    • http://files.ivyshi.org/uploads/1/3/1/3/131379296/zonelaj.pdfIn PDF document text
    • http://files.bopmusicschool.org.nz/uploads/1/3/1/4/131437172/9664d77cde.pdfIn PDF document text
    • http://files.lorainedavies.com/uploads/1/3/1/4/131484395/pumezale.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/91643103969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4906/6394/files/nitifurowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1095/6196/files/kafisolafopujumuzilizut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38461358607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/32103391760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49839171509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6787/3182/files/git_force_pull_from_remote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/76815427333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7418/2563/files/gmc_acadia_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2534/9283/files/mary_go_round_south_park_mexican.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9603/9839/files/zokarezutafikunupeliweze.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000085d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85D8 4756 bytes
SHA-256: c7c1c6d3b09a3737f7533530139c6bbb16704921bc0db4efb4492990e18cedca
font_01_sfnt_off0000960f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x960F 16040 bytes
SHA-256: 90c52a036d754de86620f4e6554b6ef3bc7323cbaa146b5259bdb9dbfd84086e
font_02_sfnt_off0000c4f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4F8 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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