Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a82efaea96bab67…

MALICIOUS

PDF

47.1 KB Created: 2020-07-30 21:20:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a5ddced96ba7117b5b970cd4e39980c SHA-1: e78cbd0c68d4beb577ffcd507275d33f05333450 SHA-256: 6a82efaea96bab67bca93700c4aa594a1fdf7c208a236063e20778709e821185
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, suggests a lure related to educational materials, likely a phishing or scam attempt. The presence of a link farm and redirector indicates an attempt to drive traffic to potentially 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.cc/pify?keyword=ordering+numbers+worksheets+4th+grade+pdf In PDF document text
    • http://files.molly-boone-wed.com/uploads/1/3/1/3/131379223/wusitisatituji-tinebixipizibi-jipovefunuxu-veguf.pdfIn PDF document text
    • http://files.richardellishair.co.uk/uploads/1/3/1/4/131407357/buxonojudewas-lurazedi.pdfIn PDF document text
    • http://files.chiminisiberians.com/uploads/1/3/2/7/132710780/7fdc5bf48522.pdfIn PDF document text
    • http://files.makingwithwords.com/uploads/1/3/1/1/131164321/3c54f9c4c3e16f5.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/1/0431/4087/4408/files/degupes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1557/7504/files/67066259586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94448736580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/zemorezageniriwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3745/6534/files/burewarunexesuzuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4143/1464/files/34148238600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9037/files/22179373692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/15036216634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7520/5288/files/23247458297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6409/8970/files/69197476934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7321/6411/files/kiwaduvitofaviladovikot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/17507874725.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_off00007894.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7894 5716 bytes
SHA-256: 99da466614b4d99db8ed0a42823ba9345106451c07d6e0d0f46d51401a06cb1b
font_01_sfnt_off00008bf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BF8 10100 bytes
SHA-256: 08a1ec10e3c49b3818cc2947555bddad908743b5ee7a490cb04f059e55645fda

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