Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c585f4b1988df24…

MALICIOUS

PDF

33.2 KB Created: 2020-08-23 13:13:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 350797d757b6f6d6acadc93bf1790f7b SHA-1: 26ea000eb2a034879258e697d4ea1a5e07ac78ee SHA-256: 0c585f4b1988df24baf84a33026d0a9f0b455c90f38c64cce7638ae24f7eee48
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, including one that redirects to a known malicious infrastructure. The document body text, though partially obfuscated, includes a URL that appears to be part of a link farm designed to lure users with game-related content. The ML classifier strongly indicates maliciousness, and the PDF structure suggests it's designed to exploit user interaction via links.

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=tw+warhammer+2+alith+anar+guide In PDF document text
    • http://files.stmichaelskalida.org/uploads/1/3/1/3/131382470/manosa_merozatoxasix_moxek.pdfIn PDF document text
    • http://files.ycvideos.com/uploads/1/3/0/9/130969153/ed03c3e9d.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/1/0430/6770/3457/files/1827022079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4674/7805/files/80943511643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7281/1171/files/treatment_guidelines_for_asthma_attack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/download_buku_akuntansi_perusahaan_jasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/aplasia_medular_en_el_embarazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/bulk_up_fast_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/diagnostico_de_anemia_falciforme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4321/5767/files/javascript_array_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7175/7718/files/8904824378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6166/4154/files/dujorobovemajavibes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1280/0168/files/event_management_website_templates_free_s.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13908697451.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 6

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_off000047f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47F2 5232 bytes
SHA-256: 82ce7dbdb0672bdee8b16c09982005198b63384fbd1a9b1de1c09f8e89395573
font_01_sfnt_off000059a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59A5 8956 bytes
SHA-256: 752415d13fdae2a1efea9c0219ded7249bd9ffc2a33a05814141c06612b48a38

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