Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2ca882f2dc0589…

MALICIOUS

PDF

52.6 KB Created: 2020-10-23 17:44:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: b314cd25f76904422a9c7c3afc627121 SHA-1: dcad78f99201bf7022f9350d1e51467a1aaa9c08 SHA-256: af2ca882f2dc05899fd14f12db3d3df4a6c728a7047e60efc7e721cb2993c553
194 Risk Score

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/123?keyword=awg+to+mm2+conversion+chart+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375353/normal_5f912d3f8c66f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369772/normal_5f8de4a4e864c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366348/normal_5f8896572bfb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368503/normal_5f8ce0c5962c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387713/normal_5f90cf20c6064.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366947/normal_5f8a44500e7c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385014/normal_5f8fceadc90ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405899/normal_5f91d45b3baf5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366382/normal_5f8ff2073a2b2.pdfIn PDF document text
    • https://xumogaveranowiw.weebly.com/uploads/1/3/4/3/134371782/linesudukud.pdfIn PDF document text
    • https://jemajodelevo.weebly.com/uploads/1/3/4/3/134394711/xorifok_vimilumexivun_pilejapolufizof.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/47292360a0.pdfIn PDF document text
    • https://tevirilozarenov.weebly.com/uploads/1/3/2/6/132695732/8362064.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379045/normal_5f8cf3e7974c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366360/normal_5f872d82337d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366309/normal_5f89cdba3f02a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374979/normal_5f895f91c0200.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://s3.amazonaws.com/wilugugo/sunufasugodiranamo.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/pegaxatoxujuzuratovuxa.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/giledugebifemuwila.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A21 5596 bytes
SHA-256: 2336d2b766638cdee06bcef0591c302aca3f7186391514b6234c0bf23cd0edec
font_01_sfnt_off00008d15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D15 12928 bytes
SHA-256: 9feec3ed2307aac479fe3fdd534e0cedc89ce834459ca410a41774e10a6b3b37
font_02_sfnt_off0000b6b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6B6 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e