Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d848f6308881c81…

MALICIOUS

PDF

44.2 KB Created: 2020-10-19 23:49:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 6b1c4f6856157664d1218e9a84fe6f1e SHA-1: fb17fbeaa11be97534c51d166fd961444961eda8 SHA-256: 5d848f6308881c81394706a477b8a9e2e6972eb831aa7f565334430415e536aa
192 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ggtraff.ru/wb?keyword=warkeys%20dota%20download In PDF document text
    • https://rogidalot.weebly.com/uploads/1/3/1/6/131636841/2289554.pdfIn PDF document text
    • https://lixaworone.weebly.com/uploads/1/3/1/8/131871871/teramonimavepaz.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/a0ccd9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367959/normal_5f8974d2d5df4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387814/normal_5f8d7bc6787a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370071/normal_5f8946fab3ecb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370053/normal_5f887dd4c1667.pdfIn PDF document text
    • https://folukufisika.weebly.com/uploads/1/3/1/3/131384255/xulipusosofeb.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/metor.pdfIn PDF document text
    • https://rokolumer.weebly.com/uploads/1/3/0/9/130969153/4701538.pdfIn PDF document text
    • https://jasazifo.weebly.com/uploads/1/3/1/4/131437377/sezunaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369793/normal_5f89d2cdea92d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367294/normal_5f887d58481eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377936/normal_5f8c7ab8ef577.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367911/normal_5f8b3a3d9d99f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367631/normal_5f8b457b98041.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1fcf0ef-1691-42d8-8665-8bc6be54ee78/95140270801.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/990c3edc-86cf-4dd7-ba3b-13a1bbf44c54/32323038479.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51556190-17d0-4cb8-a9b6-0dc5d7c475b4/sir_thomas_more_utopia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0319/9138/files/gogigisoladavatafanitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6387/7537/files/river_island_mens_size_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4726/4166/files/milijogabusixan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9737/5388/files/wusorizubizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/9919/8118/files/fibadiku.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2F 5092 bytes
SHA-256: d2e75ba2ae55a0ea7d8046dbdf0c5170270ce07b1c7c6fa80dce628192a43c22
font_01_sfnt_off000080af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80AF 10264 bytes
SHA-256: 9b3a7df2a8cc2acfa2b2500cb657d943cfe601b02242e43a6c830b0a81992399