Malicious PDF — malware analysis report

Static analysis result for SHA-256 84047faa95ed32e6…

MALICIOUS

PDF

34.1 KB Created: 2020-08-07 22:11:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6403c7a77d807461579d0385a6fdb882 SHA-1: b1eb52e7c4e59067fdf0b27ea3ca96a9c7a3231f SHA-256: 84047faa95ed32e6078d025f807af154bf897810402ae0919ed9870b582fd966
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure for free downloads, likely leading to phishing or malware. The primary malicious IOC is the redirector URL used in the SEO link farm.

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=preparacion+de+alcohol+en+gel+pdf In PDF document text
    • http://files.denglenntraveljunkies.com/uploads/1/3/1/3/131398555/73c5871f.pdfIn PDF document text
    • http://files.stroproductionz.com/uploads/1/3/1/1/131163898/d27c665.pdfIn PDF document text
    • http://files.ncgconsultants.com/uploads/1/3/0/9/130969573/gowibug-kumeb-sedusalidu.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/1/0429/6481/1927/files/pabetafetotilab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/wofadedubopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/xoxozitixerotani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5944/3862/files/75353778367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/savowogofoxifonikili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/86364522707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9090/1144/files/34137635982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9857/8848/files/susaxosulox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7275/6648/files/accounting_tutorial_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9984/4762/files/bser_10th_social_science_book.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 6

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_off000046ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46EF 5240 bytes
SHA-256: cde10911620f98f2f65989c989e427aac1b0d4aa19d9899c6e5e5c2c925d0101
font_01_sfnt_off000058bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58BD 10336 bytes
SHA-256: 7de36156d243d8a4c3e22d1ed117a989e2c31620aa6de99fd45d36715c1c3999

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