Malicious PDF — malware analysis report

Static analysis result for SHA-256 690c630207bf34bd…

MALICIOUS

PDF

40.8 KB Created: 2020-08-05 06:56:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 109028f4f554c848f48194d6a03caf63 SHA-1: 9536f00d84a9ce5d6fb68e086f5cc2514f2db327 SHA-256: 690c630207bf34bdbf31b2b1c9cce4b88c5846b283ffd004c18c541e239160f0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure related to PDF conversion tools, suggesting a phishing or scam attempt. The presence of a malicious redirector link and a large number of external links points towards an attempt to drive users 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.com/pify?keyword=pdf+to+word+converter+nitro+pro In PDF document text
    • http://files.durhamcoc.com/uploads/1/3/1/4/131437683/nibelemozitaleg.pdfIn PDF document text
    • http://files.thefeatherednestdowntownwestjefferson.com/uploads/1/3/1/3/131381693/zuredawonewetet_dukufim_xajefatoxibuga_wepiwov.pdfIn PDF document text
    • http://files.gjohnstone.net/uploads/1/3/1/6/131637043/6103523.pdfIn PDF document text
    • http://files.sylvainetlesfilles.com/uploads/1/3/2/7/132741241/gupaxafigurude.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/1/0432/9157/4430/files/kubapesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1914/9216/files/81060365596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8855/7718/files/oracle_jdk_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dipipopiluniwewikojidil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5317/0334/files/24969370273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86562581376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4660/6760/files/javascript_vs_jquery.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2525/0974/files/how_to_upload_a_folder_to_github.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/abnormal_human_karyotype.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1807/4786/files/65261405310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1478/1085/files/gomomotulalajap.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_off000062dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62DD 4880 bytes
SHA-256: 43fed8c50f4ae8b8afc85ca208419775f5fc6356ad7be196d75f916ccc1d5b31
font_01_sfnt_off000073a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73A6 10260 bytes
SHA-256: 8ca3d08073e0b2cef682949d9a383f52171625ed8149e72e28d7d31b3380c5ac

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