Malicious PDF — malware analysis report

Static analysis result for SHA-256 67f02e63579f0077…

MALICIOUS

PDF

44.3 KB Created: 2020-08-04 11:51:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f356fb51e2663393f04d1d14f0898a9 SHA-1: 105602f3f3020f24d66fdd2e7715338497d876f7 SHA-256: 67f02e63579f0077e2c7aba5c257d014a51f077e4f6d08f993641c03dd6125b5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector infrastructure. The primary redirector URL, https://ttraff.cc/pify?keyword=nacionalidades+en+aleman+pdf, is flagged as malicious. The document body, though heavily obfuscated, contains this URL and other links to what appears to be a link farm designed to distribute further malicious content. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=nacionalidades+en+aleman+pdf In PDF document text
    • http://files.pqassessments.com/uploads/1/3/1/6/131636612/8458189.pdfIn PDF document text
    • http://files.specsolns.com/uploads/1/3/1/0/131070116/valapuvu-xitofafusibe-gakagilevexopi-xevim.pdfIn PDF document text
    • http://files.trinitybaptistchurch.org.uk/uploads/1/3/0/8/130813668/9700727.pdfIn PDF document text
    • http://files.scottbrianhewson.com/uploads/1/3/1/3/131383698/vuvozilapoviput.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/1/0432/2790/6206/files/80432385033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/jogonezubatones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9276/2006/files/bizaladofigesidejisiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6356/6755/files/93272352184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9048/5150/files/jiroko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27347714529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6403/3429/files/97152752997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3813/7755/files/felokewivukivimijawetetig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9648/9632/files/36944243195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1428/3686/files/32156339830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3332/9815/files/vejojelenesozaw.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_off00006420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6420 5176 bytes
SHA-256: 197f85bce5a46ee6ace5b9082bf43fa2f7cdaefa5e1326846be962bdba5c2174
font_01_sfnt_off000075b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B3 15560 bytes
SHA-256: 2742b491fc6715bf03c4e52018203acff4a286f66c3445005d5ae1e3f77d0103

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