Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e5649f3ebb274c2…

MALICIOUS

PDF

40.1 KB Created: 2020-08-18 14:50:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1363b664b30e3f716336b61a4693fb78 SHA-1: 370acea7f9912a31e0323dc494c84c3407d81435 SHA-256: 3e5649f3ebb274c2f03d210bed8e53693f33da571b7967387642c0acd63d7c3c
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but also includes a critical redirector link to 'ttraff.cc'. This suggests a link farm or SEO poisoning attack. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be the redirection to malicious infrastructure via the embedded links.

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=peacock+ore+mineral+formation In PDF document text
    • http://files.happytailacres.com/uploads/1/3/1/0/131070178/duwowamoz.pdfIn PDF document text
    • http://files.annmartin.co.uk/uploads/1/3/0/9/130969761/7841032.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/1/0438/0295/1842/files/xisikeludojinifar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6269/7894/files/37443207385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1626/3592/files/5265742893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3480/4375/files/kiguvoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8876/3298/files/balanceamento_de_reaes_redox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7118/3775/files/e2_80_9cyardstick_e2_80_9d_policy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4625/6295/files/hul_annual_report_2020_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1079/1323/files/rifiwafebigadekukexexin.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 3

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_off00005e3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3C 4912 bytes
SHA-256: f79cae83234f5686608b45bb21bc8ae3053dc4620bf26bbf12c893cd8a4e5fe4
font_01_sfnt_off00006edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDB 11208 bytes
SHA-256: 6e385ede50b45559647b40595b5710f3dd21e322b0eb0e08a76cdb05e743aab1

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