Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6b5660946ceb4b7…

MALICIOUS

PDF

43.9 KB Created: 2020-08-09 11:35:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a0b09ee39a98a82f7f9508edbff8f15 SHA-1: 3331b8589928928b8e3e0a88e4d0a149a7c4a414 SHA-256: f6b5660946ceb4b7bb5b2e5ea6727d0ac1be35cc1e025879d32cfa0bec3f7fa5
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a technical specification document. The ML classifier strongly indicated maliciousness, and the PDF was found to contain a link farm pointing to various external PDFs, including a known malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=boeing+737+700+specifications+pdf, which likely leads to further malicious content.

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=boeing+737+700+specifications+pdf In PDF document text
    • http://files.22ave.tv/uploads/1/3/2/6/132695915/968d5.pdfIn PDF document text
    • http://topiwa.ttvapor.com/uploads/1/3/0/7/130775934/75561f86.pdfIn PDF document text
    • http://files.katherineoday.com/uploads/1/3/2/7/132710779/cfe89a1aa9115eb.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/1/0434/6963/5734/files/xasixetazixivama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5629/0206/files/iphigenia_in_tauris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/59799256787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6931/7013/files/jutunuvogelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9850/5377/files/dofegutet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5789/7882/files/58924589483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1787/files/32786810352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2027/1259/files/58923853429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3782/4926/files/bcom_1st_year_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8626/3960/files/calendars_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2408/0282/files/bizege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6462/3265/files/60785434071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13652925252.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 7

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_off00006b2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2E 5632 bytes
SHA-256: d2cbbf41f893c2f976b723d4cebc54fac35f0125eb4ebd7ca5181792905f4d58
font_01_sfnt_off00007e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E81 10604 bytes
SHA-256: 5bb706bb7eaf5753794d22d60fa21327817eb29d128bba83592a6b5dd99e8ecd

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