Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fdd76b04cf3e8c9…

MALICIOUS

PDF

42.0 KB Created: 2020-08-22 16:13:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 87a979c54824eab2603e993d36248173 SHA-1: cdea39042f15c8939c62a605fe9f17d88c153183 SHA-256: 3fdd76b04cf3e8c92c6ae4dd18ab3458cc305b79b09ee0e53e173ccaaa700987
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link pointing to ttraff.ru, which is associated with malicious activity. Additionally, the document exhibits characteristics of an MFA lure, suggesting an attempt to harvest credentials or session tokens. The presence of numerous external links, many hosted on Shopify, indicates a link farm designed to improve search engine ranking for malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=acls+2015+pdf+espa%25C3%25B1ol+descargar In PDF document text
    • http://files.shilohrescue.com/uploads/1/3/2/3/132302824/1555e246e.pdfIn PDF document text
    • http://files.stoddardumc.com/uploads/1/3/0/8/130815009/4598015.pdfIn PDF document text
    • http://xafuxiz.blossomholistichealth.com/uploads/1/3/1/4/131406086/bulobirazexa_nimosopebi_luzobevoru_vozedupa.pdfIn PDF document text
    • http://durow.riveflowyoga.com/uploads/1/3/1/4/131454950/buzifusalatapos-zeliwirabejepe-fepemaletotedet-gupozitoxuwep.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/1/0431/0161/8330/files/94972181354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6196/0091/files/jixunotemape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8680/7201/files/98287587768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9118/2243/files/69736014976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5083/5876/files/pavuraxotewup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5687/1062/files/vexedamaxulabum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/89554836592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3287/0037/files/weekly_tax_table_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1083/4077/files/import_script_to_tampermonkey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1889/2965/files/aptis_mock_exam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6545/9366/files/zandalari_engineering_guide.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_off000061e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E2 5976 bytes
SHA-256: 6c2849d07598421bfd9f07c0e88806de2a5edbe44565c6839126ac1c79131462
font_01_sfnt_off00007608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7608 10380 bytes
SHA-256: 07e3265b81335814eff735c34d177e7a0702a5ad088ec1e29627638503ec179d

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