Malicious PDF — malware analysis report

Static analysis result for SHA-256 026f5cf9fc1aeffc…

MALICIOUS

PDF

40.3 KB Created: 2020-08-08 20:41:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81aed62fd1be543dbac6b26359ffcd5e SHA-1: e835b757fc28d2058fda3a6ca71ff2b62380afae SHA-256: 026f5cf9fc1aeffcbd0885121443bc4fcea92882accb6f7e594556638325ecdb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a link that redirects to a malicious domain, identified as a redirector for phishing or malware distribution. The document body, though obfuscated, contains text related to 'Castles of Mad King Ludwig rules pdf' and the malicious URL, suggesting a lure to download potentially harmful content. The presence of numerous external PDF links, many pointing to benign Shopify domains, indicates a link farm strategy to obscure the malicious redirector.

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.com/pify?keyword=castles+of+mad+king+ludwig+rules+pdf In PDF document text
    • http://files.joyks.shop/uploads/1/3/0/9/130969012/nanuzew-tiwipajofete-natagisovi.pdfIn PDF document text
    • http://files.wmgamebirds.com/uploads/1/3/1/4/131453907/1615128.pdfIn PDF document text
    • http://files.ranchochamber.org/uploads/1/3/2/6/132680890/a1bb11.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/1/0437/8440/5153/files/stihl_fs_46_parts_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/41516458436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1236/6241/files/systemic_functional_grammar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3831/9527/files/24897683452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9825/0146/files/adjectives_worksheets_grade_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1748/7011/files/15895361617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4626/3201/files/arabic_to_urdu_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8047/2984/files/98040206833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8995/9839/files/tosida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8549/6482/files/kigipujoroxezuzeluwi.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_off00005a2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2E 5424 bytes
SHA-256: 5b0a405261a770bd7977ebe366822bc6c84e8d537698351176e801fa5566e704
font_01_sfnt_off00006c9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9C 12404 bytes
SHA-256: 856b6ac94661b3d26fdf4836888d1b21984c1b8910c6419a461699b845aea74d

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