Malicious PDF — malware analysis report

Static analysis result for SHA-256 b618d304a319ee23…

MALICIOUS

PDF

48.6 KB Created: 2020-08-23 10:04:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aecff48e1f311a9ffa26b51bd9c03ee5 SHA-1: ea66c3fdfabb7859cdd193b9f75e04d2665b3df7 SHA-256: b618d304a319ee2348bafbdbfaa1b0be6b8d0de4fd1a7e2c9fc8c015b27a255f
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 one critical link directs to a known malicious redirector at 'ttraff.com'. This redirector is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains references to 'Apple application support' and URLs, suggesting a lure to trick users into clicking the malicious link. 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.com/pify?keyword=apple+application+support+64+bit In PDF document text
    • http://files.bbsimon.com/uploads/1/3/2/6/132682570/tudijimavu.pdfIn PDF document text
    • http://files.kylacorbett.com/uploads/1/3/2/6/132683330/2726608.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/1/0462/7241/3856/files/home_goods_job_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/alpha_m_diet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3033/1040/files/42398242861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1451/9966/files/material_design_android_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/6351/9906/files/nirawatabozusexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0812/3303/files/kewobejoturopozuvufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1713/4502/files/87102663536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6320/6307/files/87939073689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9481/9484/files/xutinubifakulujixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0388/5206/files/54022581176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/alberta_blue_cross_claim_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5675/files/wanoxoduxaraketepewekavaf.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C4 5296 bytes
SHA-256: 7fceba7648a53d0ba8a3ddb3fa109960589299a44d037111147e4825babd9f61
font_01_sfnt_off000072c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C5 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off00007b52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B52 10332 bytes
SHA-256: 8e2bb6105d93c859f4851b8748277de1da447c02495cf6a2ba62446265b78aff
font_03_sfnt_off00009e6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E6B 16888 bytes
SHA-256: ffe907badb0ecc7219e2e902eb20165fdf7cbf9d13f09c977717f93f4fa52e74