Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7405d7e2f32a99b…

MALICIOUS

PDF

53.2 KB Created: 2020-08-08 10:52:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90bdc7193cdbebe68c89e5d3053cba8a SHA-1: 1694b311550e784124d602e174393f65f2a90f85 SHA-256: d7405d7e2f32a99bd71283fc1ac82223b62dc9170aa8f35eba1eafd2ce5f2e09
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with one identified as a known malicious redirector. The heuristic firings indicate a PDF link farm, suggesting the document's primary purpose is to distribute links, potentially for SEO manipulation or to lead users to malicious sites. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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=hygge+meik+wiking+pdf In PDF document text
    • http://files.cominghomeadventures.com/uploads/1/3/1/8/131856917/1321306.pdfIn PDF document text
    • http://files.kccreekranchevents.com/uploads/1/3/0/7/130739850/tatiwezofijon.pdfIn PDF document text
    • http://files.50plusstickingtogether.com/uploads/1/3/1/3/131383456/4500958.pdfIn PDF document text
    • http://files.violin-piano-lessons.com/uploads/1/3/0/8/130874639/fdcea3d44b.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/1/0437/0304/2216/files/lana_dealessi_nude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2744/8476/files/arifureta_novela_ligera_volumen_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9900/5863/files/gimp_documentation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/22273933999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/78469793108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5542/3396/files/xozawizosivujigavazepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3485/9941/files/nuximifasofisuboniz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9522/8565/files/97011869204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/81509530064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1392/2206/files/gonaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8585/5897/files/administrao_pblica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/diwisosolumuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6545/8336/files/pafafuripukevo.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_off00008c58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C58 5064 bytes
SHA-256: 7d90f418d87e3b01cfb2d5ef208bad7c285228ac43d903efbf73c8888738bfa6
font_01_sfnt_off00009dab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DAB 14204 bytes
SHA-256: 12915994d1af042f7ff0cfb8c18d2de5a62732c8943d9d51ba94dcee019668db

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