Malicious PDF — malware analysis report

Static analysis result for SHA-256 7587fe803057265d…

MALICIOUS

PDF

52.0 KB Created: 2020-08-07 03:00:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d3f447a2efb8fc057861fe3b96762c5 SHA-1: cb6559d8c59b060b3bd183d229a256a1a519d2b9 SHA-256: 7587fe803057265d5ce507ce446e8db50f69e1fc0f9d1d74c5a6847bdd2c13d4
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector (ttraff.cc). This redirector is likely used to obscure the final malicious destination, which is part of a link farm designed to appear as legitimate PDF downloads. The ML classifier strongly indicates maliciousness, and the overall structure suggests a phishing or malware distribution attempt.

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.cc/pify?keyword=antimicrobial+activity+of+garlic+pdf In PDF document text
    • http://lanar.virtualbudo.com/uploads/1/3/0/8/130814297/608258.pdfIn PDF document text
    • http://files.napervilleroofingrepair.com/uploads/1/3/1/4/131406714/9166306.pdfIn PDF document text
    • http://files.winstonheinrichs.com/uploads/1/3/2/7/132740586/1de03e16.pdfIn PDF document text
    • http://files.laseraccents.com/uploads/1/3/2/8/132814552/firizuvija_sixuvekemot_sivetiv_wiluzulibenub.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/1/0432/1745/3211/files/wigizipalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1187/3688/files/hemoglobin_and_myoglobin_structure_and_function.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9421/1750/files/48155554536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9964/3286/files/kipidon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7244/4823/files/xudupomokeseduxepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/power_converter_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/connect_local_git_to_github.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8852/7014/files/61699897342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1524/8794/files/wopudil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2936/3878/files/13915288094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6368/0932/files/16891493254.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_off00008cbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CBC 5588 bytes
SHA-256: f1b863a834caaeaf1cc8d42a19bf2f8566a4154765fc38d26fac4d3ea6ad6f6b
font_01_sfnt_off00009fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FBA 10216 bytes
SHA-256: 1caadd0b01dc459239fc562f64bd0f86786a236127eb0809ecc0941c525fdca1

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