Malicious PDF — malware analysis report

Static analysis result for SHA-256 333ffa3d71da3c3f…

MALICIOUS

PDF

40.5 KB Created: 2020-08-18 17:46:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fd4f951f1761c86bd75b03631751d8a1 SHA-1: 7c4ce1731c25e0621da13e2e13841a3dfa3f37e8 SHA-256: 333ffa3d71da3c3f040c4e7e77d117047c3e72a18ab7e7dc0d0514da04b48eb3
202 Risk Score

Malware Insights

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

The PDF file contains a deceptive title and a call-to-action phrase, aiming to trick users into clicking embedded links. The primary link redirects to a malicious domain (ttraff.com), indicating a phishing or redirection attempt. The file also exhibits characteristics of a link farm, with numerous embedded links pointing to various PDF files, likely for SEO manipulation or to obscure the malicious intent.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=literature+review+conclusion+template In PDF document text
    • http://files.greenfieldpubliclibraryfoundationma.org/uploads/1/3/1/3/131398231/potoze.pdfIn PDF document text
    • http://files.tlamcivics.com/uploads/1/3/0/7/130738779/f33866f2c41e859.pdfIn PDF document text
    • http://files.skydivetofino.ca/uploads/1/3/1/1/131163867/veziretej.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/1/0429/5540/7511/files/21760078561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8030/2244/files/fibrinolytic_therapy_guidelines_acls.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/algoritmo_para_resolver_el_cubo_de_rubik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8597/1112/files/47769544007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4539/5359/files/dulawezesewisavepesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9081/8712/files/29249166450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8747/6389/files/betewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2881/4746/files/83792507132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3511/3110/files/australia_visa_application_form.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_off000061a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A9 5172 bytes
SHA-256: bcd3b4cf9312cc9d0eac0c6e24ba74064402b13141ddcc7e89a6a51faa1aa884
font_01_sfnt_off00007339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7339 10160 bytes
SHA-256: b930eefbcbdf9055f50e630e590ee50fb09da862aab3968ef0f78817aa482177

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