Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f8093513c5fb1eb…

MALICIOUS

PDF

40.1 KB Created: 2020-08-16 20:23:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3ee9ca92453637466329c1cd8a7e7d77 SHA-1: 2d8135063dca9dc59636eeb05af5086aacf8f2bb SHA-256: 7f8093513c5fb1eb495762ff4d6461296996460aaf0f131141be740f48482482
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a link farm designed for SEO manipulation. The document body, though partially corrupted, contains text related to 'avery mailing labels word template' and the malicious URL, suggesting a lure for users seeking a template. The ML classifier strongly indicated maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of known malicious redirector infrastructure.

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=avery+mailing+labels+word+template In PDF document text
    • http://files.williamsburgrec.com/uploads/1/3/2/6/132682745/tagogumolizim_fofuzipupi.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/1/0435/0876/0735/files/jiberenowokubiridabor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4003/8298/files/wovetebepiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4804/9572/files/83320837057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0392/6952/files/fonanutenunudotagolanawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sazofafusogowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4383/1458/files/acupuncture_meridian_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0464/9884/files/acs_gen_chem_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6553/1806/files/jivapigepemowabuguxut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3545/9738/files/51486543209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7141/3160/files/musubijupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/64700859996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23063093424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1720/6946/files/numerical_linear_algebra_trefethen_free.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_off00005daa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DAA 5664 bytes
SHA-256: 5aa18be74911dc62f3f624abdb3857742f4e75e60e49e8ca808410060eb4a995
font_01_sfnt_off000070e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E2 10188 bytes
SHA-256: 3eee299f254d39fecf7565960ce16a4289748529d7c62a5bd042e0aa40971b39

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