Malicious PDF — malware analysis report

Static analysis result for SHA-256 116d8b066a1f20d4…

MALICIOUS

PDF

36.4 KB Created: 2020-08-22 09:47:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99f1b9c3595302fae7be724e9322c210 SHA-1: 55f948c6ddf97427fbadcc0d27741c3a7928bdb9 SHA-256: 116d8b066a1f20d4569dc1ceca6a66cdf3c8c083b0f071f51ad185bf11c2fd17
194 Risk Score

Malware Insights

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

This PDF document contains numerous links designed to create a link farm, with a primary malicious redirector URL. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure for a McKinsey AI report. The presence of multiple embedded links to external PDF files, including a known malicious redirector, indicates a phishing or scam attempt.

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=mckinsey+ai+report+pdf In PDF document text
    • http://files.appletreecontractors.com/uploads/1/3/1/6/131607712/9709263.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/1/0433/0147/0366/files/unilever_indonesia_annual_report_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7587/0630/files/business_trip_itinerary_template_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9770/1032/files/electric_field_simulation_lab_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5219/4202/files/ropejeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3164/5608/files/eset_antivirus_para_android_apk_full.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4805/0586/files/monografia_sobre_el_alcoholismo_en_bolivia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4338/9597/files/murufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3048/5912/files/46249556517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6861/1998/files/7475501620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/bautismo_cristiano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/2309/3147/files/revised_common_lectionary_year_c.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_off000050c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50C7 5288 bytes
SHA-256: a282ad3efc730ed787bb86970224bc7cf410f8314fc70cbb7ffc581612c9d7eb
font_01_sfnt_off000062da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62DA 10100 bytes
SHA-256: e28fc0ccb165511429c4e75b4482b9cfe484c68375942ede01b62edf310fe421

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