Malicious PDF — malware analysis report

Static analysis result for SHA-256 2574c53cd5c8fdf1…

MALICIOUS

PDF

40.8 KB Created: 2020-08-25 00:43:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d5cbb35cb3a5c72293c8fbe85689cf2 SHA-1: 672632b47ed636c99c70e1914eb6bf5aa2f26322 SHA-256: 2574c53cd5c8fdf1eb6707b23d8537a31a499b2d9210c4a77db10e6f1f13d4a0
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, disguised as interview questions. This link is part of a link farm, suggesting an attempt to distribute malicious content or phishing pages. The primary malicious URL identified is ttraff.com, which is used to redirect users to further 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=client+services+representative+interview+questions+and+answers In PDF document text
    • http://files.hollyrav.com/uploads/1/3/0/9/130969592/d6966c673cf2.pdfIn PDF document text
    • http://texet.emmanuelcommunityfarm.org/uploads/1/3/0/9/130969742/xamuxotudoxililarife.pdfIn PDF document text
    • http://fukixavo.mosaicinaction.com/uploads/1/3/2/8/132814930/f663238ead.pdfIn PDF document text
    • http://todina.bethelchapelny.org/uploads/1/3/1/0/131070588/4608730.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/1/0435/9526/8264/files/wenukokopimuxidoxevajap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3595/9202/files/25230542707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7569/7830/files/nawibiredisikozewoxexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8325/9301/files/asthma_wikipedia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/97911510518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/7309/8143/files/how_to_make_ender_portal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2062/3765/files/2376763609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1451/1001/files/banting_green_orange_and_red_list.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 4

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_off00006264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6264 5248 bytes
SHA-256: 27761554d7f37ad51ed3df52b8db9b67d59ef4f5e629f3a3e90352d04946b0ab
font_01_sfnt_off00007456.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7456 9868 bytes
SHA-256: da44c0ab60c610a6b1d4bf4100bd66105425a5806923f6305b767ce838e7fccf

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