Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cdd7e3662a86cf7…

MALICIOUS

PDF

43.7 KB Created: 2020-08-19 00:17:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5aa099690e2502f037cee1f39f1f8078 SHA-1: e874108baf18b25e298a3574a225ecfd2087b84e SHA-256: 6cdd7e3662a86cf78e627de1729bcb64d5cba5b2df3c4c6f8d0707ffef2303c6
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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=gerd+treatment+guidelines+pdf In PDF document text
    • http://sunalap.banyan-consulting.com/uploads/1/3/2/6/132683071/ravegapuxow.pdfIn PDF document text
    • http://files.tangonegrofilm.com/uploads/1/3/0/7/130738875/rolubotax-ratatedur-jebiberolusov.pdfIn PDF document text
    • http://fugixoxir.saltwaterandseaglass.com/uploads/1/3/0/9/130969723/78ca46e775c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6304/9376/files/kinobody_superhero_bulking_program_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2462/1473/files/73534003202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/10182853189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1355/4855/files/zakunezaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/9011/7538/files/wumatoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/44008315294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75901524911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0356/6486/files/51957036521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/6613/3397/files/administrative_assistant_resume.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000615e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615E 5164 bytes
SHA-256: 0b532badee7a3fc060f3bf1db2b4f910bfa2c7b5307a61c70f1335785ae99b80
font_01_sfnt_off000072d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D8 9816 bytes
SHA-256: b3ef020c69fe294ea8358c6f9ef81f65f97120a8aa9f1213114db16760b35e71
font_02_sfnt_off0000945e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x945E 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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