Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee680d6279327bcb…

MALICIOUS

PDF

51.1 KB Created: 2020-08-10 07:00:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 879ba1dadb61064fbdcd7095f7db48e0 SHA-1: 8340c26cf2e65c54cf2e15763b984d9fa36b04d8 SHA-256: ee680d6279327bcb6c57a3fdf449421cab4b82383e975d03a990037bbc725189
194 Risk Score

Malware Insights

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

The PDF document contains a mass external link farm, with a primary malicious redirector URL embedded. This indicates a phishing or social engineering attempt to lure the user to malicious infrastructure. The document body, though heavily obfuscated, contains the malicious URL and other benign-looking URLs, likely to appear legitimate. No scripts were extracted from this sample.

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=islamic+finance+and+banking+system+pdf In PDF document text
    • http://files.kaushikthallapally.com/uploads/1/3/1/3/131381555/1790553bd1.pdfIn PDF document text
    • http://files.fpaterson.com/uploads/1/3/1/0/131070009/1683092.pdfIn PDF document text
    • http://files.topmattfnq.com/uploads/1/3/1/3/131381464/6aaada781780.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/1/0446/0825/8211/files/automotive_technician_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4796/0232/files/black_and_decker_weed_wacker_string.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9965/9176/files/kazile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4387/2150/files/26990087226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8668/3037/files/plazas_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7562/4355/files/noboreziwuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/3663/5299/files/eenadu_epaper_online_today.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/centrifugal_and_axial_flow_pumps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6104/2591/files/48162488995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4579/6512/files/tifetujofakipapozopil.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
🗂 Part of campaign: kaushikthallapally.com 9 samples

Related samples 3

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_off0000886d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x886D 5624 bytes
SHA-256: a43d3277e22533d0fb22ceb57eaadd5d2fffb0fdfe8d67a091b8c1ebd401f66c
font_01_sfnt_off00009b88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B88 10644 bytes
SHA-256: a7118acd262b6d89374e13ff37a746e573d6ff8f34a8911b40026ab22fea6f71

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