Malicious PDF — malware analysis report

Static analysis result for SHA-256 59934176908b58b2…

MALICIOUS

PDF

40.8 KB Created: 2020-08-16 00:56:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 84fa31c8f138ae610cf0e964551a0d08 SHA-1: dad66c9748c8ba09194d3aac71e7aa64103c4db6 SHA-256: 59934176908b58b21e48a028e79f50d1642b818f6a72cd51642139c18cc86b1a
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, including a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the string 'Modern chess strategy pdf' and a URL that appears to be part of the lure. The heuristic firings indicate the PDF is designed as a link farm to redirect users to malicious infrastructure. No scripts were extracted from this sample.

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/wb?keyword=modern%20chess%20strategy%20pdf In PDF document text
    • http://mawujis.simplysailing.ca/uploads/1/3/0/8/130814328/3112826.pdfIn PDF document text
    • http://xevevupu.thebayshorecondos.com/uploads/1/3/2/7/132712615/sotugova_zubefat.pdfIn PDF document text
    • http://files.thomsonlodge.com/uploads/1/3/1/8/131856860/jezedodezozexure.pdfIn PDF document text
    • http://files.cedaryogaspace.com/uploads/1/3/1/3/131384573/mumaridel_dugowolewewe.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/1/0431/4116/9303/files/wegexovumev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5657/8212/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4619/9711/files/7374567827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0124/0985/files/lozawegitibilorojopabad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4670/7104/files/adverb_of_place_worksheet_with_answer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/ccna_dumps_2020_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3633/1419/files/asia_minor_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6376/7203/files/tf2_how_to_bind.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5353/4632/files/xubemudikozakavoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2067/2409/files/giguwafitibed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6339/2921/files/34207748864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0115/9575/files/b._sc_nursing_syllabus_inc.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_off0000607d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607D 5492 bytes
SHA-256: 2aecfc6e32c2a7285a56cfd726f885c9fc47c19df55b6b42fc2ead16d437fa2b
font_01_sfnt_off00007336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7336 10280 bytes
SHA-256: 152dd7f2dcdc96fa417dbbcdf9479da2a993dc93a8f9cf2b7780f35a41483544

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