Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffd2ca3f0759cb87…

MALICIOUS

PDF

33.0 KB Created: 2020-08-25 06:45:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 77f9550438c1da22aa265bfdcd89d0b4 SHA-1: 9b2f89bb6b5c71ae8c685b1730a59f1089260e1b SHA-256: ffd2ca3f0759cb87b6d5b40f5db63190c293ea607de1707565f2f91cd8a1c7e2
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. One of these links points to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document body text is largely garbled, but the presence of the URL 'https://ttraff.cc/pify?keyword=avery+table+of+contents+template' within the document content suggests a lure related to templates. 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=avery+table+of+contents+template In PDF document text
    • http://files.bluesystem.ca/uploads/1/3/1/0/131069764/bbe440ee76.pdfIn PDF document text
    • http://warufet.marianne-ward.com/uploads/1/3/0/8/130874588/993cca1.pdfIn PDF document text
    • http://files.mareda.org/uploads/1/3/1/4/131437864/e27fb8854540.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/1/0440/5713/3221/files/rakelazalonunugalamagifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vawis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9434/3829/files/9429348900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8574/9665/files/25864945495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/18940753989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6839/9524/files/sixunomesoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0288/8093/files/rakegekefetebut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/2426/8702/files/android_distribution_december_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6410/5886/files/52743372666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/20417617525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8809/0022/files/buffalo_dairy_farm_design.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_off0000427f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x427F 5452 bytes
SHA-256: 7fefdc77f4a2af2ad80d2422a04e8436c1d02a9683da1a7fdd330f4ea9812d12
font_01_sfnt_off000054fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54FE 10004 bytes
SHA-256: de847ebd0cb1db0fbb308ed0b791b3d3121cbcbedc06c7fd518360cd9f6e996f

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