Malicious PDF — malware analysis report

Static analysis result for SHA-256 5038018041c6c149…

MALICIOUS

PDF

46.1 KB Created: 2020-08-28 01:01:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2dc6a7419f75903ed3d1f2dd028482e0 SHA-1: 673ba0bcf543700a1f1b335692ed683afa8c1030 SHA-256: 5038018041c6c1499e9d505bc8fe651aa34466a19ee8f4336c9860469582b805
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a malicious redirector. The primary malicious URL identified is 'https://ttraff.link/pify?keyword=roland+barthes+empire+of+signs'. The document body, though heavily obfuscated, also contains this URL and other PDF links, suggesting a lure to external, potentially malicious, content. The ML classifier strongly supports the malicious nature of this PDF.

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.link/pify?keyword=roland+barthes+empire+of+signs In PDF document text
    • http://files.spaatthecolonnade.net/uploads/1/3/0/8/130814926/f0ca605e8407c4a.pdfIn PDF document text
    • http://files.progettiarduino.com/uploads/1/3/0/8/130874240/9458604.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/1/0436/4537/0518/files/hierarchical_taxonomic_system_of_classification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/excel_vlookup_function_two_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3502/5831/files/financial_separation_agreement_template_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7693/4042/files/55832758552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4899/files/1483532752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/jubexonamix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9925/0072/files/aids_day_information_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5464/4894/files/lesasilawagisefesiwowan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6869/3407/files/88825955281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5637/9557/files/16554396003.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 5

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_off0000770e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x770E 5600 bytes
SHA-256: 57f10c5a9e807746561d2dc85d330fc38fd753fbd101e51b1ee6ec2ad6a659b6
font_01_sfnt_off000089e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E9 9980 bytes
SHA-256: 8cb47accba2edd078368039ea4dbf9fd04d33c738dfeaca5326a08c7a5f4c063

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