Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa6688300d082d96…

MALICIOUS

PDF

40.9 KB Created: 2020-08-22 09:01:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 510c1646198b56f49ceed274df454e16 SHA-1: a3d457415cd35f5d65d5da0a7eff12ac089a49c8 SHA-256: aa6688300d082d961a8415cdb29f05a6e9f9de4dec02952d172bd01dc69f1cee
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. Additionally, PDF_SEO_LINK_FARM suggests the document is part of a link farm, likely for SEO manipulation. The embedded URL https://ttraff.ru/pify?keyword=nice+guidelines+testing+for+chlamydia+and+gonorrhea is the primary indicator of malicious redirection, while the numerous shopify.com links are likely part of the SEO strategy.

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=nice+guidelines+testing+for+chlamydia+and+gonorrhea In PDF document text
    • http://files.yogilea.com/uploads/1/3/2/6/132695578/muvataretafaxuzamudi.pdfIn PDF document text
    • http://patoz.adamvoss.com/uploads/1/3/1/8/131871479/tetixivilos.pdfIn PDF document text
    • http://gogulubeg.garykearns.com/uploads/1/3/0/8/130814328/wisonep-lukonilabijof.pdfIn PDF document text
    • http://files.countryrichfashion.com/uploads/1/3/1/4/131406068/facb73cad.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/1/0434/4872/9766/files/why_arusha_declaration_failed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0265/7957/files/10788163106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2646/5436/files/mixavejonuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/45287167704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5444/8286/files/59609598105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34803766861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9837/files/kiruket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/6579/5737/files/haryana_news_election_ki_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2476/9436/files/85028706773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2258/9853/files/35563615121.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 3

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_off00006221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6221 5504 bytes
SHA-256: 94c0f129e6dbd5037db0ec32a5536fe73366d2fa613dbd1b3bdcc7e2a7a55da9
font_01_sfnt_off000074b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B5 9920 bytes
SHA-256: 0f6959c578c55ed65a557fb230a82ba634cf9f75b395e0a89e0217fd39ab2db6

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