Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fb93c0c0c3bf6b0…

MALICIOUS

PDF

55.0 KB Created: 2020-08-08 16:32:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 280527a156d8b244fcfddf495574eccd SHA-1: 6b2e8575585f732d57243518bc8548796419340d SHA-256: 8fb93c0c0c3bf6b0e53691b6f4262477cc987eaedb3d8545fb6c53fd633fd854
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Capitals of countries in the world pdf' and a URL that is also flagged as a malicious redirector. This suggests a phishing or social engineering attack aiming to trick users into visiting a harmful site.

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.ru/pify?keyword=capitals+of+countries+in+the+world+pdf In PDF document text
    • http://files.trailffest.co.uk/uploads/1/3/0/9/130969456/052c6c13a.pdfIn PDF document text
    • http://namogogu.hmclaughlinkolb.com/uploads/1/3/0/9/130969060/luniv.pdfIn PDF document text
    • http://zinifewaw.paulgreenwoodactor.com/uploads/1/3/0/7/130739553/jiworivujeditisepe.pdfIn PDF document text
    • http://files.daedalusinnovation.com/uploads/1/3/1/0/131070476/fivipa.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/1/0432/5693/8646/files/zifenumiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8918/2376/files/55957544074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3748/1365/files/32255908946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8365/3527/files/60873199508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6012/5080/files/56616720183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6713/8470/files/vefaxomugexatikudor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3902/2485/files/libro_conecta_tu_cerebro_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3749/1357/files/5258339385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2181/1364/files/14829657165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/nerugilavewefirag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7043/1125/files/vazowixuluvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9168/0666/files/lamexabedapewokaj.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_off000099ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99AB 5240 bytes
SHA-256: 036dc2e2bdccbed6de0296a9042475eda172f2b2dd499a450988efd1f7a44ac8
font_01_sfnt_off0000ab89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB89 10276 bytes
SHA-256: 30f28a6812cd49abca73e219538cc0dbdaedc2370144caabfc37c5284e9ffcd1

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