Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ca1a89cbd7557a8…

MALICIOUS

PDF

43.8 KB Created: 2020-08-03 12:11:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6299e621bc46159b45bb68f6a6535bda SHA-1: 217bd91729f4c34a7b79285711f8ca1037cb96b9 SHA-256: 2ca1a89cbd7557a82f535f9abf3d31cf4a76fa6f24c1402381744670524d1fad
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=historia+clinica+psicologica+definicion+pdf, which is linked to a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other links to Shopify domains, suggesting a lure to download further malicious content.

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.com/pify?keyword=historia+clinica+psicologica+definicion+pdf In PDF document text
    • http://files.gdv-epckirlian.com/uploads/1/3/1/4/131438557/a42f8.pdfIn PDF document text
    • http://files.jasminkwan.com/uploads/1/3/1/4/131453733/30a0d1.pdfIn PDF document text
    • http://files.jjtothethirdpower.com/uploads/1/3/0/8/130813100/a8eaa395b77970b.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/1/0430/3532/8663/files/39351167750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7341/4055/files/pumufaril.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2341/6995/files/lafazom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4827/9970/files/40095974097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/5e_ability_score.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7623/1063/files/mosazedesunefefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2299/1007/files/17657079636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2224/4264/files/regunupeperikanomaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2231/0811/files/wupopaxamivezegigotoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7909/6728/files/jubiz.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_off00006d70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D70 5284 bytes
SHA-256: 0190f63e73be7ece9274c0a3f0c94b4e067d844d808b219ad9367a372bd4910f
font_01_sfnt_off00007f77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F77 10068 bytes
SHA-256: c6c0af59471c2b79c0f260f226c352c225eea211f3b080c88430cfbfdfe4985a

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