Malicious PDF — malware analysis report

Static analysis result for SHA-256 367b479633d634c0…

MALICIOUS

PDF

41.1 KB Created: 2020-08-28 10:20:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d59afa88fda0c6cc2eed9d6028e145e SHA-1: b55c715fb993f2a0c901a38a517971f6dce371a2 SHA-256: 367b479633d634c02ce7442beaa71b689dd1080ae78b158c3dec365c639fe643
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic identifying a malicious redirector. The document body text, though partially garbled, contains a URL that appears to be the same as the malicious redirector. This suggests the document's primary purpose is to trick users into visiting a malicious site via these 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.link/pify?keyword=descargar+pipi+calzaslargas In PDF document text
    • http://files.morroandjasp.com/uploads/1/3/0/9/130969375/wojerodijudo.pdfIn PDF document text
    • http://zewuru.audreysaxton.com/uploads/1/3/0/7/130738629/3636426.pdfIn PDF document text
    • http://butotori.embcmanning.org/uploads/1/3/0/8/130873830/todagefelesu-nulasaguxox.pdfIn PDF document text
    • http://bejoro.thewanderingbays.com/uploads/1/3/2/6/132682883/givofufabumowukap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7645/1494/files/juroxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0812/1242/files/simiwifodumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0461/5066/files/78726680276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7676/4327/files/63163545845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5791/3754/files/pizidudiwasiderudituju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1061/2635/files/98493515974.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/13082527243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2888/8227/files/kozaxujuvugosepotut.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54C6 4640 bytes
SHA-256: 6f17ded4c9ed8c8cd0fa5c8616c919aa47bb7ac1995dc46f43e4d2e94e2245f4
font_01_sfnt_off0000649e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649E 11548 bytes
SHA-256: 4f59e98d65e70bc09563a7388b314aa5efe4022cbd0c17dd6df560417e788453
font_02_sfnt_off0000886b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x886B 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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