Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b66345d98a62837…

MALICIOUS

PDF

102.0 KB Created: 2020-08-04 20:32:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cccda6d433f3fbe5494e0a5eb964521c SHA-1: 41812abc5f8e0de5a5e8860a24225026d42ec52b SHA-256: 9b66345d98a6283710adccd8b03cb2201d6e4b7a58104438b300c9a63f38810b
234 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Shopify domains, suggesting a link farm for SEO poisoning. One critical heuristic indicates a malicious redirector link to 'ttraff.com', which is likely the initial lure. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a delivery mechanism. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the PDF might be a password-protected archive lure, intended to bypass gateway scanning.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=discuss+kubla+khan+as+an+allegorical+poem+pdf In PDF document text
    • http://files.abqmfg.com/uploads/1/3/0/8/130874509/bb8692f1b83.pdfIn PDF document text
    • http://files.alpsbound.com/uploads/1/3/1/3/131382274/7523145.pdfIn PDF document text
    • http://files.delhialliance.org/uploads/1/3/1/8/131856170/4b3235b761149.pdfIn PDF document text
    • http://files.danieljacobhill.com/uploads/1/3/2/3/132302816/wadaveti-bejudab-bezaxagipikiv-zakumemujadek.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/1/0431/6318/9405/files/xampp_mysql_default_password.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9241/0525/files/vuvafazabalasoxivadofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2830/8387/files/british_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5307/2022/files/gutuvejobewivuxuzoduxepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1523/3959/files/53372276725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5214/6586/files/99376799024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0256/8599/files/tonisazirofof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/pikelovob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2169/6149/files/99_in_hex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5597/2505/files/zalus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7710/6838/files/33847853201.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 1

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_off000150a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x150A1 5772 bytes
SHA-256: 43ef4a87c353fea3415bd806e59d79d7f0e78a39e938c88e8f2d388bd1d99bfe
font_01_sfnt_off00016420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16420 11512 bytes
SHA-256: 356d7e14bacf160e06354a4c31d98b765eeb15ed386ca9e3cec733a9f5b40b04

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