Malicious PDF — malware analysis report

Static analysis result for SHA-256 c274f3f2e20a8026…

MALICIOUS

PDF

59.0 KB Created: 2020-08-22 06:50:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01a326876f1a3f02e05d4b1627aa2be0 SHA-1: 2107110471d288ea6690f5b21d8080cefaa324cf SHA-256: c274f3f2e20a802677162483f59406826caddcd74a1f2d7884dcb9558a4bd78d
194 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to external PDFs hosted on Shopify. One of the primary links directs to a known malicious redirector, ttraff.cc, with a keyword suggesting a review of 'Android one os'. The presence of a malicious redirector and the mass linking strategy strongly indicate a phishing or scam attempt designed to lead 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.
  • 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=android+one+os+review In PDF document text
    • http://files.deltasculling.org/uploads/1/3/0/7/130738955/botizin_buvexab_nekuburoz_jitiverefekuve.pdfIn PDF document text
    • http://lawuxad.liveforliteracy.com/uploads/1/3/1/4/131453459/vojikopimivupo.pdfIn PDF document text
    • http://files.simply-scripted.com/uploads/1/3/0/7/130775228/4064420.pdfIn PDF document text
    • http://tibapopox.crevecoeurworkspace.com/uploads/1/3/1/4/131453329/5624557.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/1/0435/5280/0929/files/sbi_personal_loan_form_16_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3305/9737/files/32560245947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6879/8614/files/vekejigobide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30899714004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7832/8221/files/93772861526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5275/9200/files/mifanujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8128/5286/files/68578809242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6154/2054/files/sap_business_objects_web_intelligence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/tekonsha_prodigy_p3_trailer_brake_controller_manual.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_off0000ab7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB7D 4716 bytes
SHA-256: 004776f0ed58d1cf2a8f79074bf77b65e966a4bb1f05932143d8be30feba9aad
font_01_sfnt_off0000bba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBA8 10364 bytes
SHA-256: 50d6044a7f29f643944e3ff6e1beb96f12fef10059aee7801d30afbfd75b301a

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