Malicious PDF — malware analysis report

Static analysis result for SHA-256 6126c418047cd38e…

MALICIOUS

PDF

43.0 KB Created: 2020-08-18 16:31:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 459a1bff55f61347c9d079b834229ee4 SHA-1: f5b7224fef115e62fac7c9554190e73e9d6f4b7f SHA-256: 6126c418047cd38e3eb5c76dc303a97edb0056c408ee96ef899fb502314efebf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious intent, including links to known malicious redirector infrastructure. The document body, though obfuscated, contains a reference to "Boston legal theme song" which is used in a URL pointing to the malicious redirector at https://ttraff.com/pify?keyword=boston+legal+theme+song. This suggests a phishing or malware distribution lure.

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=boston+legal+theme+song In PDF document text
    • http://petino.stpaulpublicschools.org/uploads/1/3/0/8/130873826/jijavotabinip.pdfIn PDF document text
    • http://nijinedo.whbaptist.org/uploads/1/3/0/7/130739564/nejiluvef_noruzifo_bedoriwi_fetakuduzenob.pdfIn PDF document text
    • http://mimog.maudink.com/uploads/1/3/0/7/130776716/bokuvasetuluj.pdfIn PDF document text
    • http://files.lacrestapoa.com/uploads/1/3/0/8/130813755/7941517.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/1/0434/3683/4981/files/lusufotazemesolebima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/xanoxakuwisimiperi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3309/1496/files/jexesededu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9139/2664/files/esh_esc_hypertension_guidelines_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4121/0011/files/76552371722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/age_of_empires_2_hd_demo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7556/7777/files/texejudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1189/7504/files/lorepovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2478/4292/files/xanipebavorerosurase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/liveboj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5897/7178/files/barron_s_toeic_8th_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/6574/5054/files/fourier_transform_infrared_ftir_spectroscopy_principle.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_off00004cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CF0 5052 bytes
SHA-256: 27cff76b106d51c5847614c0f9a12b0007744651fbb6931107f4bd596d29cf94
font_01_sfnt_off00005df4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF4 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off00006681.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6681 9764 bytes
SHA-256: 130ba7a644ba9be1d12a3cbea5b6484eb0a0c8d1c8a71d63c91c83def18b8ab3
font_03_sfnt_off00008834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8834 16660 bytes
SHA-256: 682a406efcdf7dd49f9c494c129bca6394f160b3e372cc4ba493723cd6bcd7e0