Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6bc160ad18178d7…

MALICIOUS

PDF

53.1 KB Created: 2020-08-08 11:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 29d73e1b095bd6f9940e2a433a289e37 SHA-1: 08eaabf44d5aa5b27539087cc17544cd258995f4 SHA-256: b6bc160ad18178d7d1a360b9e390abf841fa52accffdb0660d9f04a81ae152e0
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a Cisco Press CCIE Routing and Switching PDF. This link leads to a link farm hosted on Shopify, which likely serves as a distribution point for further malicious content. The ML classifier strongly indicated maliciousness, and the presence of numerous external links points to a SEO-based lure tactic.

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=cisco+press+ccie+routing+and+switching+pdf In PDF document text
    • http://files.rachaeleggebeen.com/uploads/1/3/1/3/131379699/4441637.pdfIn PDF document text
    • http://files.socapital.co.nz/uploads/1/3/0/7/130738512/woxotonisudiz.pdfIn PDF document text
    • http://files.shadesofdenimaus.com/uploads/1/3/2/6/132681579/cfc898.pdfIn PDF document text
    • http://files.somosescritores.com/uploads/1/3/1/4/131483097/nubemuzak-vusimipusewav-gozukipox.pdfIn PDF document text
    • http://files.creativeescapeworkshops.com/uploads/1/3/1/6/131636980/gagumipitutej.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/1/0432/1627/3563/files/tanubib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7678/8117/files/tunix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4379/8683/files/possessive_pronouns_lesson_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8452/9310/files/98746596246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0029/7633/files/3865619373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8750/4294/files/40796382229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9969/2958/files/sanase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9714/2936/files/lejile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4942/6845/files/walagematile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/47409878475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8589/7627/files/34948647023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5385/8472/files/bedorodo.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_off00008299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8299 5380 bytes
SHA-256: 7baf3cf0e38262187997780cfd85c96f091e59af264320ec5d146a025b3938da
font_01_sfnt_off000094f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94F4 15688 bytes
SHA-256: 06d4c8cc2c7f79860100f256f4a08b80d8007855908a2b765a3dec70a237dd20

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