Malicious PDF — malware analysis report

Static analysis result for SHA-256 62cd74ae6b9e548f…

MALICIOUS

PDF

59.2 KB Created: 2020-08-12 19:02:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a778471b3431b4b3dbc4ccbf523b6319 SHA-1: d022764de44ea52c85d81c4942bcf419b83da290 SHA-256: 62cd74ae6b9e548f042e94d9677d19e7cd31cf842b3bcfe4d672543f28323fbc
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to a malicious domain (ttraff.com). This indicates a phishing or scam attempt, likely to distribute malware or steal credentials. The ML classifier strongly supports the malicious verdict, and the presence of embedded URLs and a link farm further reinforces 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/wb?keyword=lectures%20on%20macroeconomics%20blanchard%20pdf%20download In PDF document text
    • http://files.nationalwealthcenterclub.com/uploads/1/3/1/1/131163578/fomizovesaru-wetegefileta-rijoduzafemex-fenikitamur.pdfIn PDF document text
    • http://wenana.thestrongestfish.co.uk/uploads/1/3/1/0/131070420/6d2c38e62a.pdfIn PDF document text
    • http://files.newcreationeq.com/uploads/1/3/1/4/131413718/241bf4c594ec3.pdfIn PDF document text
    • http://najadem.heavenswingsonline.com/uploads/1/3/2/7/132740214/3786089.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/1/0431/4896/8090/files/oxford_english_dictionary_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/33152141594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/gebasazamafuvax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0414/7350/files/american_english_file_1_second_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/83304358200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/rawexobowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/bovetekofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1682/2692/files/minecraft_nether_hub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4736/0424/files/laloso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3240/4380/files/merobonelokajovisomel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9735/7472/files/59990641246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3615/5809/files/ashrae_55.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4053/0854/files/north_america_map_hd.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_off0000a76a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA76A 5568 bytes
SHA-256: e30daa84584811c4a6b641999781120998822e52468430876d227809491f9227
font_01_sfnt_off0000ba34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA34 10984 bytes
SHA-256: 8dd801dd305a0a9cf2998522371d5079b1550efea8a441a8016cdf903b6a0988

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