Malicious PDF — malware analysis report

Static analysis result for SHA-256 40027f6ed261717a…

MALICIOUS

PDF

41.0 KB Created: 2020-09-17 02:41:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68371f208424408880634e73e52ce959 SHA-1: b39d8083ec8076563cdffb6fdd73cd90fc79fc8b SHA-256: 40027f6ed261717ad768481177c06e15f78c4a3fc99a9898e5e8c4f27a151f1f
184 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to suspicious domains and are likely part of an SEO link farm. One prominent URL, 'https://ttraff.club/wix?keyword=water+ridge+kitchen+faucet+replacement+parts', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious infrastructure under the guise of providing search results.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.club/wix?keyword=water+ridge+kitchen+faucet+replacement+parts In PDF document text
    • http://puxufuxen.nadinebertalli.com.au/uploads/1/3/0/7/130775413/a42a6c.pdfIn PDF document text
    • http://nadebiver.slykerfamilyministry.com/uploads/1/3/1/3/131380213/juberisal.pdfIn PDF document text
    • http://tabipomu.karlijnpostma.com/uploads/1/3/1/8/131871493/2a9e5a0d3db.pdfIn PDF document text
    • http://files.stevenkriegerlaw.com/uploads/1/3/0/7/130775429/4302577.pdfIn PDF document text
    • http://files.biggsbassethounds.com/uploads/1/3/1/8/131857071/84fb7a2093dbc.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/1/0430/3552/5282/files/nawujawinite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/7266/8057/files/7697023511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1803/1002/files/aliens_3_movie_free.pdfIn PDF document text
    • https://dfafa0aa-4943-4f0a-a861-fccb8caaf662.filesusr.com/ugd/24d943_4a69adc4d49a4016919fc61449d8887d.pdf?index=trueIn PDF document text
    • https://1fcba8f2-63ca-4c12-92a7-9c824f5d14c2.filesusr.com/ugd/5b5da7_b58b6cf7e2854a58af8cc56d55a847d6.pdf?index=trueIn PDF document text
    • https://6ed66ad2-d5dc-42e3-8bef-961a581e2379.filesusr.com/ugd/66f3f9_f546d387e2004fcb877c9e30265deca0.pdf?index=trueIn 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_off000060ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CE 5648 bytes
SHA-256: a87877cee4f7b604734b1854718f189adb8594a50a2f58c1087c4a5998c4c264
font_01_sfnt_off000073f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73F0 10268 bytes
SHA-256: 5da2e4e915e502031c30bf25b86a02a62585265e40093378b8608cf66a7bf937

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