Malicious PDF — malware analysis report

Static analysis result for SHA-256 29ef246fb986cd09…

MALICIOUS

PDF

50.1 KB Created: 2020-08-15 00:17:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 308902b4503fc292aaf7a6367fc0ae66 SHA-1: 0546af0ad0bdff10534f30dd0322ee40b902d8fa SHA-256: 29ef246fb986cd098d11ecd18e5ab83e46328f60aaa447a6aa0d295e81b938d4
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wb?keyword=letscom%20fitness%20tracker%20ip67%20user%20manual'. This URL is embedded within the document body, which also contains numerous other links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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/wb?keyword=letscom%20fitness%20tracker%20ip67%20user%20manual In PDF document text
    • http://files.jaztalks.com/uploads/1/3/2/7/132712129/04774d0f8.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/1/0431/5335/9005/files/list_of_anticancer_drugs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/85157201107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2629/1611/files/award_template_blank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3995/4856/files/89332451169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2388/2650/files/lobster_tail_carlo_s_bakery.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/8486/7736/files/50871396235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wetitoditasenubekuxon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7329/0908/files/51239180350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9417/2058/files/75455468633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/auto_mechanics_and_auto_electrical.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3748/2405/files/25400879723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4581/3413/files/57553928401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0085/files/bejeweled_3_online_free_game_no.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B31 2828 bytes
SHA-256: 4aba2bb845853324476be69e5ed1bf4ff35002942389efac2b843cac1129f0e9
font_01_sfnt_off0000852c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x852C 5400 bytes
SHA-256: b1caece90fbdef305859e916cd90639ed8bb3d976f1269e13f8975f5a559ad38
font_02_sfnt_off0000977e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x977E 9828 bytes
SHA-256: 67ca7da2d87eb8ab4b654f0e8b93c890f69f4142f5206e5fc67b7c3e43e7063d

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