Malicious PDF — malware analysis report

Static analysis result for SHA-256 fea1152cb1020d9b…

MALICIOUS

PDF

41.8 KB Created: 2020-08-16 00:38:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f7e4c51b32742dadf5aecaa153f2645 SHA-1: 68c9fe7ae14a9089497a69271c0d66585564fecc SHA-256: fea1152cb1020d9b018c85823bdd04be2de2f3fa17e01b4f71f3cab50b1d78fe
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.cc/wb?keyword=stanley%20220%20block%20plane%20manual'. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or malware distribution. The presence of numerous links hosted on Shopify and other domains further supports the link farm attack pattern.

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/wb?keyword=stanley%20220%20block%20plane%20manual In PDF document text
    • http://files.hemp-aura.com/uploads/1/3/0/8/130874163/6736818.pdfIn PDF document text
    • http://files.keithmcardle.com/uploads/1/3/2/3/132303009/8091555.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/1/0431/6810/4610/files/vubezilusazaxejozisib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2710/1853/files/rerafuribe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1784/6427/files/fopizegozemuguku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/puvumeseraporobof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7074/8827/files/sewing_machine_parts_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1714/2433/files/rumopaxokepoxofatuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5942/1092/files/luvodon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3938/9856/files/writing_algebraic_equations_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8897/7813/files/sorozififuzefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2512/9891/files/holt_english_textbook_10th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5557/0341/files/pimezesolofufilopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6409/8970/files/fejowar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/supermarket_billing_system_project_documentation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0155/1771/files/33538279879.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_off000063c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C8 5488 bytes
SHA-256: 3da590a8d792a0dff61a718528190ae34d4dda8c71f8f11df93b66d6fd591e46
font_01_sfnt_off00007666.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7666 10564 bytes
SHA-256: bacd280309b58bb9ed6310a013ea4a4eae2c8fd59eeaac02d3e54f8216ee5345

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