Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6956e9971a9a49a…

MALICIOUS

PDF

41.3 KB Created: 2020-08-22 19:29:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fba8c960a3a79156616e94cdb74b81b3 SHA-1: 21d7c2180fdb9fb94fb9f620b28ff68f102cb57a SHA-256: f6956e9971a9a49ac946a4d6a7f503c6bfa1e865bf3495c6a2cfb8afb8697942
202 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, characteristic of a link farm. One of these links, 'https://ttraff.ru/pify?keyword=sap+hana+studio+mac', is identified as a malicious redirector. This suggests the document is designed to lure users to malicious sites, potentially for phishing or to download further malware. The presence of a 'download button' heuristic further supports a deceptive workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=sap+hana+studio+mac In PDF document text
    • http://files.rgcgymnastics.org/uploads/1/3/1/0/131070166/546036824.pdfIn PDF document text
    • http://files.countryintheuk.com/uploads/1/3/1/3/131398461/a9eab4ddcb4fb.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/1/0429/4829/6857/files/19372630621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0560/7070/files/37550223061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86399573169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5832/1818/files/conan_exiles_named_armorer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3434/files/59559421589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2050/1660/files/59410015052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7467/3057/files/23718194293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9755/5093/files/nouredine_zettili_quantum_mechanics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0212/6755/files/orbit_er_linux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/guwegisogef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7812/3680/files/70414810662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2953/9485/files/broaching_tool_nomenclature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5489/0149/files/69395186317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1817/4107/files/bawimunudaxisi.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_off0000634a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x634A 5288 bytes
SHA-256: e82c6e20f6d1a7a8dee1e144736ad5519e1e5a8753ca42d2be8d86b57bffeb13
font_01_sfnt_off00007511.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7511 10416 bytes
SHA-256: 6928fb8b9754cc6fb89b352d4eee8ae93a2b21e5e4e3f60e5375d384368a960e

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