Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dedbb71d63f979f…

MALICIOUS

PDF

51.6 KB Created: 2020-09-20 00:49:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e1aff60b4078fd611bff2a019da20d47 SHA-1: 6b7c16a031bd3907712ce902267d9e32b33bac63 SHA-256: 7dedbb71d63f979f750331fd38a8dd4cc5bd591ce1af76aeb4e755feb6228c2f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to redirector domains and SEO link farms, indicating a malicious intent to drive traffic to potentially harmful sites. The document body, though partially corrupted, includes a URL that points to a known malicious redirector, suggesting it's part of a phishing or malware distribution scheme. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a high-risk attack pattern.

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.me/wix?keyword=clasificacion+del+derecho+romano In PDF document text
    • http://nozoniv.clevelandaquaticteam.com/uploads/1/3/0/7/130739347/keludel_wenijizegoxip_bafawaterelimaz.pdfIn PDF document text
    • http://files.mikelipari.com/uploads/1/3/1/0/131070846/vijowaraluditisir.pdfIn PDF document text
    • http://files.cassieorduno.com/uploads/1/3/1/1/131164431/dabudimotenare.pdfIn PDF document text
    • http://wutukel.pytharealtygroup.com/uploads/1/3/0/8/130813786/741869.pdfIn PDF document text
    • http://jukakus.palacecityjazz.com/uploads/1/3/1/0/131070289/d396e998df58c.pdfIn PDF document text
    • http://files.salemhistorymatters.net/uploads/1/3/2/7/132740214/fukusiduneri-midusoset-vujurilisonob-gokodifinumuraz.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/1/0436/2820/0096/files/zagekopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0576/2974/files/91282776378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1285/files/moto_morini_for_sale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/majugoxabagenadepum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6876/5861/files/sesoxawatejosap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8903/0048/files/med_surg_certification_exam_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/pevibilenelinejofaxirusug.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_off00008b9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B9D 5168 bytes
SHA-256: 4cec36f16ed810e2663ab659b7708f714187bb4eb546933e9688bdf7ff9c36be
font_01_sfnt_off00009cfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CFC 10708 bytes
SHA-256: 1a1a6c4660f73166d69464832f6a66c1c4ca53c5df0133272c0dcaf6fa4810f0

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