Malicious PDF — malware analysis report

Static analysis result for SHA-256 415b8a702459bbe7…

MALICIOUS

PDF

66.8 KB Created: 2020-08-15 02:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a16441a8144b2b264194969511eeb53 SHA-1: cfde0bc413396d9455546b9ec9509528ffb9ccbc SHA-256: 415b8a702459bbe72280639f9be0232a80b9d90524ce86d9daba5530b8ab6aa7
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, with a critical heuristic firing indicating it's a malicious redirector. One prominent link, 'https://ttraff.ru/pify?keyword=criminal+justice+reform+bill+ny', is presented within the document body, masquerading as information about a bill. This link is designed to redirect the user to malicious infrastructure, likely for further exploitation or credential harvesting. The presence of a large number of external links also suggests a link farm or SEO poisoning tactic.

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=criminal+justice+reform+bill+ny In PDF document text
    • http://files.promanchesterdigitalmarketing.co.uk/uploads/1/3/1/4/131437308/dd5b2c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9078/8000/files/merge_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0206/8131/files/algebra_1_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0712/3357/files/zubofotisusumeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6066/6274/files/83685559511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9912/0033/files/europe_detailed_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3213/8143/files/basic_computer_engineering_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0250/2054/files/chinese_link_level_1_part_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1009/3219/files/toyota_tacoma_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/pujonadorejedejelelugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3653/3151/files/36502220034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/26700051137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7816/4384/files/dopimuxuniveduw.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b9f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9F8 5248 bytes
SHA-256: c82aab327ad39bdde5d11eec366281fe7ac616db48ab3c59d52ac855ba12935c
font_01_sfnt_off0000cbbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBBB 10612 bytes
SHA-256: a8be69bda53a781bda2097e6a145270ec81f49cf38d524490f59332a49d768df
font_02_sfnt_off0000efe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE2 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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