Malicious PDF — malware analysis report

Static analysis result for SHA-256 c10e422c1c0f89ee…

MALICIOUS

PDF

32.6 KB Created: 2020-08-01 11:35:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af79ed59a3c91a7c5f99e478853d288b SHA-1: 2456a6e1cdc228bd500eeb71325bead8c120b026 SHA-256: c10e422c1c0f89eee48baa89699aa1a37947cab20e9c09e8eb577f76b5fe2985
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources, a technique often used to create SEO link farms for malicious purposes. One of the primary links directs to a known malicious redirector, 'ttraff.cc', which is likely intended to lead the user to a malicious payload or phishing site. The ML classifier also strongly indicated maliciousness.

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=wii+u+usb+helper+title+key In PDF document text
    • http://files.squirrelimprov.com/uploads/1/3/1/3/131379678/442570.pdfIn PDF document text
    • http://files.gradgov.com/uploads/1/3/0/7/130775062/noxideborab.pdfIn PDF document text
    • http://files.calvarybaptistwinamac.org/uploads/1/3/2/6/132682930/1c76086bf3c78d6.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/1/0434/3015/0300/files/4818986241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6436/7006/files/burunep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/rilamojef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/gupasomowasaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9316/4181/files/disusewutenewawulutepeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/68498558535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2007/4657/files/nevopak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6294/2106/files/89164516795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2825/7685/files/berofir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/voboxebifipodorevide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63529720688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5392/2981/files/32368323319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8325/9301/files/97698412964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/nividox.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 4

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_off0000452e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x452E 5016 bytes
SHA-256: 03cde37eb82f937aa0b952979671146c411c08b3433f1c7ea00391e9dab11490
font_01_sfnt_off00005646.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5646 9212 bytes
SHA-256: b5f3ef9b0d368570d8ee96f00a5670292f3cc9988e936975af64d2d6217f1386

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