Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d292e20d27463e8…

MALICIOUS

PDF

42.0 KB Created: 2020-09-12 19:08:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c25d87eac21dfd86ed9aadba6b374976 SHA-1: e44cdcac1017d518c17c53fb414a196294e7187e SHA-256: 7d292e20d27463e8042993e5eb2c8d8b5b88eaa8038789ffaa18e33c8487f48a
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links pointing to external websites, many of which are hosted on disposable domains and appear to be part of a link farm. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics, suggesting a deliberate attempt to direct users to malicious content. No scripts were extracted from this sample.

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.link/wix?keyword=worksheet+3+ser+vs+estar+answers In PDF document text
    • http://raketal.westerhausmetals.com/uploads/1/3/1/6/131637789/gademanit.pdfIn PDF document text
    • http://ximinuvo.pestcontrolbrampton.org/uploads/1/3/0/9/130968988/e6a5fe39aee.pdfIn PDF document text
    • http://files.thebathbombshop.co.uk/uploads/1/3/1/4/131438308/berokododa.pdfIn PDF document text
    • http://rulokake.thedesignsourceltd.com/uploads/1/3/1/6/131637881/vutupefaz.pdfIn PDF document text
    • http://kiserixa.perimeterdrainagevictoria.com/uploads/1/3/1/3/131379698/virofisezesa.pdfIn PDF document text
    • http://pomova.kitchenettecuisine.com/uploads/1/3/1/8/131856005/627316.pdfIn PDF document text
    • http://denota.tennaros.org/uploads/1/3/2/8/132814900/6862960.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/1/0437/7490/2430/files/go_math_assessment_guide_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/6789133408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8158/0188/files/gakifememonukitatetati.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/63d3ad_54ea6b029a73456cae24d770fd62e8c5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_dbef19994c02481a98afd43b7786c9c2.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_off000066d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D2 5136 bytes
SHA-256: 3821b745d2bdea447d5bf20de3491a1997d438e5c8c6e984fbf2ce18ef81ef09
font_01_sfnt_off0000785e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x785E 10148 bytes
SHA-256: 83622cba60f4345c44b566adb2c0cb0c63baa361b90a618944520c4f319e3378

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