Malicious PDF — malware analysis report

Static analysis result for SHA-256 5986524501d89d9a…

MALICIOUS

PDF

40.0 KB Created: 2020-08-21 16:28:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 915e06144e9bd3b9848d32be22e13163 SHA-1: 259ac372d0b289aaba190fa98398f7fd3f0091f5 SHA-256: 5986524501d89d9a345debafb3d4c2b0593bbc5f6d8a4e2931365c6ae5bbdac6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK indicating a link to ttraff.com. The document body, though heavily obfuscated, contains the text 'Candy pdf free' and the malicious URL, suggesting a lure for free content. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on Shopify, likely part of a link farm to improve search engine ranking for malicious content. The primary malicious IOC is the redirector URL.

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=candy+pdf+free In PDF document text
    • http://files.pacificplaycompany.com/uploads/1/3/1/4/131483184/c74632f.pdfIn PDF document text
    • http://files.cliqueticketproject.com/uploads/1/3/1/6/131606345/tukajewebaxotiz.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/1/0433/5671/7206/files/givukoxapuvijiburiperosad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3670/2870/files/javascript_string_to_float.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3050/3843/files/definition_of_research_and_development.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8486/3893/files/nukero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2981/5705/files/residential_landscape_architecture_6th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7142/2102/files/rujidubudovoxita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0528/8352/files/memefusanegibaviga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3018/4098/files/zubalumabawekexogamuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3828/5734/files/wivixizatatel.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 5

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_off00005f30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F30 4832 bytes
SHA-256: 7cd0177952dbc85585b79cf8649d1b7c8fc5628b8e10751ce97b9615d983e26b
font_01_sfnt_off00006fb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB7 10612 bytes
SHA-256: 1418562fb07bf8a7a08cf0207bb234ebc58f7964ebf9e7fde5e8a8eae208820d

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