Malicious PDF — malware analysis report

Static analysis result for SHA-256 514cadf2a446a0ee…

MALICIOUS

PDF

39.2 KB Created: 2020-07-31 18:56:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae477793ea60c5864ea08790ddf7ba4b SHA-1: 6e618cd6c98dcb835efbe53ffac4282f02dc5724 SHA-256: 514cadf2a446a0eed1794dea4462dc32cc71fd7f5bfc1e666cab8b34223ab5a5
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=self+employment+ledger+template+pdf, is presented as a 'self employment ledger template PDF' to deceive the user. The document body, though heavily obfuscated, contains this URL and other PDF links, indicating a link farm strategy to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.

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=self+employment+ledger+template+pdf In PDF document text
    • http://files.benedicthillshoa.com/uploads/1/3/0/8/130814666/dbc60c.pdfIn PDF document text
    • http://files.writersanctuary.net/uploads/1/3/0/7/130739776/teladadapegano_xilovapikupolir_zujumima.pdfIn PDF document text
    • http://files.myhoustonprobate.com/uploads/1/3/1/0/131069886/aa71ad.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/1/0431/2937/2836/files/98599947943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8341/3142/files/3998449765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2092/7655/files/28450854126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6588/5351/files/27582237903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/28980936008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/25420923627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9277/8916/files/25886280147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/23671836116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/nixuxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7147/9709/files/64447771352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2352/4259/files/74584900927.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 5

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_off00005d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D3E 5388 bytes
SHA-256: 753d164a600735f609a37b5cddcb0eb8f20473306726c45aeda734de932e82f4
font_01_sfnt_off00006f87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F87 9608 bytes
SHA-256: 98f0bafbceaa99381c61ce0239f4ab226a2ac220682a3bb3f373f8b6a23c8c1c

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