Malicious PDF — malware analysis report

Static analysis result for SHA-256 f409b6cacf868ddb…

MALICIOUS

PDF

43.6 KB Created: 2020-08-23 22:58:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 312418c44999128a52f8aa11d75bef11 SHA-1: c25d65ce7f464a9c9d5894ca3aa73659c01c163f SHA-256: f409b6cacf868ddbaa3af8ea830a5d26a757ebd0001f3b77623b8c9c04927326
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a link to known malicious redirector infrastructure at ttraff.com, which is presented in the document body as a customs declaration form. This suggests a phishing or social engineering attack aimed at redirecting users to malicious sites.

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=customs+declaration+form+ghana In PDF document text
    • http://fopom.bridgeportcf.org/uploads/1/3/1/8/131871787/1802088.pdfIn PDF document text
    • http://files.kennethlwatersjr.com/uploads/1/3/1/4/131453429/wapozumalizes.pdfIn PDF document text
    • http://files.precisionstoneworksinc.com/uploads/1/3/1/3/131398336/vafekefenof.pdfIn PDF document text
    • http://files.sanitasforexpats.es/uploads/1/3/0/8/130874330/1451409.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/1/0432/6267/3054/files/coffee_shop_business_plan_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0098/7811/files/blockade_billy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6521/files/82418164882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7408/5279/files/4392173660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7496/1059/files/15223711876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2742/9536/files/tunufudot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/8959/5287/files/nodiwalelasuxefutewopofem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8334/7606/files/candelario_obeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1136/6309/files/97386210355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6952/2599/files/proyecto_de_investigacion_arquitectura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4449/4750/files/gujej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9419/5870/files/jonemim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6273/8592/files/appchina_apk_telecharger.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_off0000697c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697C 5340 bytes
SHA-256: e79ced2e6d23bdc0f696c9bdb8b65b297c451eb4d5ee7a97c80087059290db6b
font_01_sfnt_off00007b77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B77 11572 bytes
SHA-256: b85959bbabafe95936b9fe9563cf989698c7327bceeafce0b5a416e8c933a13f

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