Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbb8d966b6202eab…

MALICIOUS

PDF

48.7 KB Created: 2020-08-26 14:04:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7eee5efd1547fab960d4d7a2ca4e66eb SHA-1: 42771d4dd6826f755f68ac82dee250219ae3019b SHA-256: dbb8d966b6202eab10f6a88bde2259be18273dcd1d9c9d4767e7c2f9f10d4668
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic identifying it as a PDF link farm. Another heuristic flags a link to a known malicious redirector. The document body contains obfuscated text and a URL that appears to be part of the link farm. The primary intent seems to be SEO manipulation or redirection to malicious sites.

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.cc/pify?keyword=fly+away+home+music In PDF document text
    • http://jeturoluf.allthingssweetandcandy.co.uk/uploads/1/3/1/3/131383309/b91c39e913c.pdfIn PDF document text
    • http://mijoz.savannahconcretecontractors.com/uploads/1/3/0/7/130776485/rizivul_vegop_jixujutolaz_repetuvifew.pdfIn PDF document text
    • http://mobotaf.gregwingtrumpet.com/uploads/1/3/0/8/130874493/3607388.pdfIn PDF document text
    • http://files.johngreinerferris.com/uploads/1/3/2/3/132303270/afc8fdfecd7.pdfIn PDF document text
    • http://files.travelingsauna.com/uploads/1/3/0/8/130813357/zowug_xonobatisobarov.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/1/0433/6893/9672/files/tikiwivowosopamulerevaxid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3217/2965/files/vufolazodatupadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0118/3384/files/1990781490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4742/6971/files/tipos_de_asepsia_y_antisepsia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6138/7170/files/wogalabovede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3964/5093/files/spreadsheet_for_tracking_household_expenses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6811/9448/files/careless_whisper_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4953/2069/files/27501591545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/brownian_motion_finance.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005069.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5069 15808 bytes
SHA-256: 1b7d1b2535047d23ad830a48c778608c6cdc824f69a816a592eb5075bac331fb
font_01_sfnt_off000082de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82DE 5092 bytes
SHA-256: 63aea9655651307a1d10f7885609e82d7f4e264725c1fb4c493d8b02ddc2de5c
font_02_sfnt_off0000942b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x942B 9796 bytes
SHA-256: 59ca77f161229b9b102113dd4c847cfaa3088077e4586dca977233f10d3abf97

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