Malicious PDF — malware analysis report

Static analysis result for SHA-256 659692188b85cd1e…

MALICIOUS

PDF

77.7 KB Created: 2020-08-21 23:02:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d3969f9bbf878451d1fa7fed80570066 SHA-1: a28bcde364f1f5fc8092b7a5c533e2fbfce30c78 SHA-256: 659692188b85cd1ec643015453ce81f64e57a0b9fe0e051a90870aeb00e33c67
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to a redirector URL, identified as malicious. The document body, though heavily obfuscated, contains a reference to 'Arkansas state fair food guide 2018' and the malicious URL, suggesting a lure. The ML classifier and critical heuristics strongly indicate malicious intent, likely to redirect users to a phishing or malware 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=arkansas+state+fair+food+guide+2018 In PDF document text
    • http://zikefe.shibuecaribbean.com/uploads/1/3/1/0/131069759/8501476.pdfIn PDF document text
    • http://files.shen-vada.com/uploads/1/3/1/6/131606121/nekaxuzorukepuzotoda.pdfIn PDF document text
    • http://files.sfhsfbla.com/uploads/1/3/0/7/130775934/xovix_sevabijuburezaj.pdfIn PDF document text
    • http://xidalasi.cshstheatre.com/uploads/1/3/1/8/131871721/5e0ac.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/1/0440/4038/8758/files/33505232701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/heat_shock_transformation_e_coli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4761/5649/files/vegomax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3502/8630/files/windows_10_command_line_reference.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0704/1958/files/39337545737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0391/1076/files/civil_engineering_books_first_year.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/goletopunoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1264/4251/files/nasemudokupewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6547/5226/files/69614487686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8103/1064/files/95271900461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9062/5191/files/get_your_guide_vs_tripadvisor.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 2

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_off0000f32d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF32D 5616 bytes
SHA-256: de00493f2d8edfaa7bde5705ef98904920e1eabb7a776aff131d8b878fb01a9d
font_01_sfnt_off00010658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10658 10352 bytes
SHA-256: 30071b66604bb3892eb0755b175dfba59e87ac0904927550b4e357af12c01768

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