Malicious PDF — malware analysis report

Static analysis result for SHA-256 bda5492487646ce7…

MALICIOUS

PDF

45.2 KB Created: 2020-08-17 17:22:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3961adb39e2b143c9d7330c5d2718be5 SHA-1: 3b6ded79bdd5ac44113c434a2365791210bb57da SHA-256: bda5492487646ce73acb84589c6cb5429617bc969e99cec53b89f2c15a03d0cf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file contains numerous embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, however, redirects to a malicious domain (ttraff.com) which is flagged as a redirector. The document body, though heavily obfuscated, contains the same malicious URL, suggesting the intent is to redirect the user to malicious infrastructure under the guise of providing a worksheet.

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=adjective+clauses+with+object+relative+pronouns+worksheet In PDF document text
    • http://besafa.davidharriscollection.com/uploads/1/3/2/8/132816202/247798d12d5423.pdfIn PDF document text
    • http://files.fbcglenwood.net/uploads/1/3/2/7/132710671/668cc49.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/1/0438/3775/1453/files/polytene_chromosome_structure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/4196765733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3020/0991/files/46464881686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/the_celestine_prophecy_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9703/0805/files/88114407324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0298/6659/files/71443955674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/dameriratavoderuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/zezomovuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6086/9785/files/liwepajosetetanilanare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/kusexij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5913/2069/files/29518899825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5523/2677/files/apeman_c450_dash_cam_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6213/1869/files/pinavezagowazimagejivata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/46077408293.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 2

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_off00006947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6947 5580 bytes
SHA-256: 41d2f8673245b0b2a7afb5839f51982ee38bcb58a7966be088a15479d8b69c9a
font_01_sfnt_off00007c42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C42 12988 bytes
SHA-256: f102555b78733df639cffe5cb38ad00d085a8d2371f6728d27f58221dcc3b805

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