Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c66ef6e73f93dca…

MALICIOUS

PDF

54.5 KB Created: 2020-07-28 18:28:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b985406efc41ffaf7126cf803be416de SHA-1: f8be4d130653ee38b833c6da9338c9b8c0f2337d SHA-256: 6c66ef6e73f93dcabe5aedb7339983c3c5b2c4b2a152c1d15c5a85f0e1e0995e
194 Risk Score

Malware Insights

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

The PDF contains embedded links pointing to a known malicious redirector, ttraff.com, which is disguised as an IKEA catalogue. This suggests a phishing or malware distribution attempt. The ML classifier strongly indicates maliciousness, and the presence of numerous links to external PDFs further supports the malicious intent.

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=ikea+catalogue+pdf+2012 In PDF document text
    • http://files.physicallyeducated.com/uploads/1/3/1/4/131454436/af4794d99eef23e.pdfIn PDF document text
    • http://files.annagalatirealtor.com/uploads/1/3/0/7/130776718/979473.pdfIn PDF document text
    • http://files.curtisnewmanartist.com/uploads/1/3/1/3/131379590/pobunolekizigidazigu.pdfIn PDF document text
    • http://files.theflyingcannibal.com/uploads/1/3/0/9/130969424/dulodedugaj-gokopotuki.pdfIn PDF document text
    • http://files.jjsatthecopperpot.shop/uploads/1/3/1/8/131856276/ec874ec631.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/1/0433/5514/4347/files/16939839153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/88339564109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9309/0714/files/bosolozegaresa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/74286434229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2590/7368/files/bolafosupomam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/golalebilafofuzugetuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1608/5923/files/86135804305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0858/7933/files/92736567467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6248/5407/files/wiseximipinefako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/guxizixizajiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5473/5264/files/48285236442.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_off00008b49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B49 5104 bytes
SHA-256: 1e5fe3617637f7c091fd8e452983b75e8e91dee1cf1e728fa5358544931e9d57
font_01_sfnt_off00009cc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CC0 15276 bytes
SHA-256: 06d478d441999fb22ce57109d0ffc8f910f9d8eb7703ffce853ceeb37a6879a5

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