Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dddb035edf571fa…

MALICIOUS

PDF

41.2 KB Created: 2020-08-11 23:02:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9caa134421bea1c3ae3bc55a1461921 SHA-1: 9e79cc8d71102017ebf96aefeb1a6c205d484e9f SHA-256: 3dddb035edf571fa86b6592e60e508ee1394e104aca7c7c191b5b818743a8fc8
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. This URL is used in conjunction with a link farm technique, embedding numerous external links, many of which point to Shopify-hosted PDFs. The ML classifier also strongly indicated maliciousness. The primary intent appears to be redirecting the user to a malicious site via the 'ttraff.ru' URL.

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=life+after+death+mary+t+browne+pdf+download In PDF document text
    • http://files.westcoastmuddypawz.com/uploads/1/3/2/8/132816066/9498711.pdfIn PDF document text
    • http://files.thortorgerudcarpentry.com/uploads/1/3/1/4/131406491/7650524.pdfIn PDF document text
    • http://files.thebronxlgbtexpo.com/uploads/1/3/0/8/130873708/lebatana_divesalafopela_biwibu.pdfIn PDF document text
    • http://files.threeoakwinery.com/uploads/1/3/0/7/130776037/lekopu.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/1/0432/5225/2829/files/73967294501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2586/6662/files/37539643497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/2875701960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6749/8911/files/78665578143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8777/4374/files/adobe_maker_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0702/5056/files/porarodaxekatiruretafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/63101113290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2986/3320/files/zirojuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/viborovikumowenaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4619/9711/files/22511701837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/46951129673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5565/0718/files/99736032676.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_off00006273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6273 5376 bytes
SHA-256: 674f774aef1ce3aba37c6ea60d8c06b81a725bf5e9ec0093ed30aa6d1eba6617
font_01_sfnt_off000074ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74AB 10392 bytes
SHA-256: f4602796a1141360410ffd23c6cf12d684e1c949d25e91e4c4eae7a67ffabe4a

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