Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc4bad37a94691c9…

MALICIOUS

PDF

42.2 KB Created: 2020-08-08 09:04:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ebf29e1ce19fbf69b757e43ee3568798 SHA-1: 9f079ff5aa76069257655149493d4583dc571268 SHA-256: bc4bad37a94691c9764b9063ed00a8c182367438b75265db22448359bc3ed44c
234 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to shopify.com domains, but one critical link redirects to a known malicious domain (ttraff.cc). The document body also contains text that appears to be a lure, instructing the user to copy or paste clipboard content into a shell, suggesting a social engineering or execution-based attack. The presence of a malicious redirector link and the link farm indicates a likely attempt to distribute malware or conduct phishing.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.cc/pify?keyword=advanced+java+concepts+with+examples+pdf In PDF document text
    • http://files.barrowbunnies.com/uploads/1/3/2/6/132695280/be2227.pdfIn PDF document text
    • http://files.genprice.shop/uploads/1/3/1/4/131453226/723370.pdfIn PDF document text
    • http://files.laraandsons.net/uploads/1/3/0/9/130969356/pozumizaken.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/1/0429/6481/1927/files/8055514937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0376/5158/files/25233343498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4927/1975/files/96306286752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5625/0525/files/woketunuwunavas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6621/3031/files/wosujonadojox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/1729/4239/files/tuberous_sclerosis_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7663/3247/files/neumonia_atipica_sintomas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/36472776057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3712/0933/files/rijozoxezabavilas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7410/1149/files/bekasidofak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6346/7414/files/2356302319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2091/0746/files/89359845548.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_off00006413.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6413 5584 bytes
SHA-256: 5941843e2ea189cf15e4bc282215ce3d1b7d3b22f59cea2308a956f835b43e7b
font_01_sfnt_off0000770d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x770D 10672 bytes
SHA-256: b852a2338e08fcdadbccfd1d236985ea580c342682091d7ae6ddb8609795c125

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