Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c3e55ad20693afa…

MALICIOUS

PDF

42.5 KB Created: 2020-08-01 12:15:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: baed203289d611248fd0f853053bd0db SHA-1: cb75f214e96c6a521fce663c6e9670f0bca827ef SHA-256: 2c3e55ad20693afa755e631f81cfa8db0637703e123ed1a64ebd8319b81a27c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though malformed, suggests a lure related to a car owner's manual. The heuristic firings indicate that the PDF is designed to redirect users to malicious infrastructure, likely as part of a phishing or SEO spam campaign.

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=2015+toyota+sienna+owners+manual+pdf In PDF document text
    • http://files.swrh.co.uk/uploads/1/3/1/3/131379591/3480312.pdfIn PDF document text
    • http://files.weeronawelding.com/uploads/1/3/1/4/131454383/6680213.pdfIn PDF document text
    • http://files.teachartathome.com/uploads/1/3/1/8/131871518/tibexo.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/1/0431/3127/3365/files/gafiwanaxag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3120/7837/files/94792076937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6332/8424/files/88537584027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3854/files/josadixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/xatawasej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6867/0620/files/pivelajej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2299/2028/files/nusipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/84577039546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/gekizon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7808/1955/files/firefox_windows_xp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5857/8086/files/worabesubitifelugabowik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5690/6918/files/75516939809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/16240792295.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 5

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_off00006717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6717 5736 bytes
SHA-256: cc16964f9d50da9b211af7d6f4d7d1d3b279abd8cd1f4bbd6454ff3e264cb049
font_01_sfnt_off00007aa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA9 10048 bytes
SHA-256: 6417d6c0434a121f16da4b5b1ae432b417b7b975173a61cf2154d6c57b460014

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