Malicious PDF — malware analysis report

Static analysis result for SHA-256 2677ad4854e2981c…

MALICIOUS

PDF

76.7 KB Created: 2020-08-09 11:42:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce7d370eb10ad62e2bd4904257cfa56c SHA-1: 17ae64234f54a4161d3d5515fd768cb242ba0377 SHA-256: 2677ad4854e2981cea35eb295af856b2afcc491fc53cb54e598178b22b10f2a8
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are SEO-optimized and lead to redirector infrastructure. The primary redirector URL, https://ttraff.ru/pify?keyword=type+of+cybercrime+pdf, is flagged as malicious. This suggests the document is part of a link farm or phishing campaign designed to drive traffic to malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.ru/pify?keyword=type+of+cybercrime+pdf In PDF document text
    • http://mofirib.thatwallpaperstore.com/uploads/1/3/0/9/130969744/dixugugajig.pdfIn PDF document text
    • http://files.actao.ca/uploads/1/3/1/3/131380612/16e18cd0977fe.pdfIn PDF document text
    • http://files.jennifercrallpsychology.com/uploads/1/3/0/8/130874403/4517183.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/1/0432/0804/8808/files/nouns_in_english_grammar_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3407/3505/files/gomezinodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/vewisiwesewagavir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0858/7933/files/roxisupizajep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2947/1130/files/69683095418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/78474471774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2021/2629/files/cutting_tool_materials_and_cutting_fluids.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3332/7776/files/vibowepifofavobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/antigen_structure_and_function.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3956/2651/files/67444756878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/gestion_de_la_cadena_de_suministros_chopra.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 2

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_off0000efcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCF 5072 bytes
SHA-256: abc3c985a6d4a51484d3d72a817d11f3d5439e390a06a3d6af80132bb0ea8681
font_01_sfnt_off00010104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10104 10852 bytes
SHA-256: 9ead1346118570f67e14c008302324a93f2b00c24692e97b32542112cd85891b

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