Malicious PDF — malware analysis report

Static analysis result for SHA-256 84653938c04ab62f…

MALICIOUS

PDF

44.4 KB Created: 2020-08-12 09:25:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75f14be982a1990652e918a4fd0b4085 SHA-1: dc70656992967510ffd39b4a77ebc5dcd9f79928 SHA-256: 84653938c04ab62fe3809b6a8c0727c207fa42ca33e8fe4a6e98ae5c3b422ae1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one to a known malicious redirector at `https://ttraff.cc/wb?keyword=table%20tennis%20rules%20doubles%20pdf`. The document body, though heavily obfuscated, appears to contain this URL and other links to external PDFs, suggesting a link farm or phishing lure. 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/wb?keyword=table%20tennis%20rules%20doubles%20pdf In PDF document text
    • http://files.planters.org/uploads/1/3/2/6/132681342/9888388.pdfIn PDF document text
    • http://files.mendednest.com/uploads/1/3/2/7/132740804/1229706.pdfIn PDF document text
    • http://navomuner.newmorningacu.com/uploads/1/3/1/6/131606289/60af981a7d2b133.pdfIn PDF document text
    • http://files.maryjoyceart.com/uploads/1/3/1/3/131379567/sojow.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/1/0432/3858/8584/files/bcg_matrix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2943/8370/files/putugoxuwipirogokikoxigew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0151/0045/files/62614639863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4796/8149/files/16219155343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6917/3923/files/nutricion_enteral_cuidados_de_enfermeria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5733/9807/files/44799081698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2670/8637/files/loxeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3003/6123/files/rotuzokelubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4017/files/dotadogofewejitatajodeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/39100109656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/fallout_76_fusion_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6585/1542/files/79925892185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/tenosoxogijek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/public_private_partnership_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/13073695904.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7117 5124 bytes
SHA-256: 87ea864d1c9d555435a5e88b7f74311b3dd66268cd0c4d0444651b42b6dcbd52
font_01_sfnt_off0000828c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x828C 9980 bytes
SHA-256: 241554adedd384370e0f6934c96c34707876f4f2849b3e5431f891ad490ca3c0