Malicious PDF — malware analysis report

Static analysis result for SHA-256 847a0e6b356f8bf6…

MALICIOUS

PDF

41.7 KB Created: 2020-10-09 23:48:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-05
MD5: 61dc5aa9168818b2a5f32edb67ff500b SHA-1: 4bf3453a1b83428d80285fb770e8466fe55e44e1 SHA-256: 847a0e6b356f8bf6d66f6f50c5718c2f48ecb74b99adc76c113d89f6183adaec
184 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.
  • 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.
  • 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://cctraff.ru/strik?keyword=makeup+artist%2527s+choice+coupon In PDF document text
    • https://site-1043653.mozfiles.com/files/1043653/73927003776.pdfIn PDF document text
    • https://site-1036680.mozfiles.com/files/1036680/susowad.pdfIn PDF document text
    • https://site-1037189.mozfiles.com/files/1037189/veresujegitenara.pdfIn PDF document text
    • https://site-1037082.mozfiles.com/files/1037082/87259922835.pdfIn PDF document text
    • http://pemexek.thebigsergeant.com/uploads/1/3/1/4/131406656/rafajiraxomomegoru.pdfIn PDF document text
    • http://pafosom.thebakingpixie.com/uploads/1/3/1/4/131407089/pawelufevibe.pdfIn PDF document text
    • http://files.kc-phramez.com/uploads/1/3/1/6/131636654/navol-tujugonisemas-mabivunanugelep-ronufewodiref.pdfIn PDF document text
    • http://wuruw.livingfaithbc.net/uploads/1/3/1/3/131398294/19debf2.pdfIn PDF document text
    • http://tumixele.emilyweihing.com/uploads/1/3/1/4/131483144/divexabalelob_mebitepiteges_rawijo_mumaju.pdfIn PDF document text
    • http://files.earthboundvoicesparanormal.net/uploads/1/3/1/4/131407388/390648.pdfIn PDF document text
    • http://files.baldwin-gaines.com/uploads/1/3/0/7/130775171/5359352.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000064c9.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000064c9.bin)
    • https://uploads.strikinglycdn.com/files/284c3455-3125-4409-a518-1d9bb2edb5ce/tunogagunipabejajelesi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/527ebc46-2165-4e94-9e22-7fec452a2ef7/poxizexejijumawusumokid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b5d392c-83d8-4dc7-8fc6-fc384bea5e82/pevusudumosawalokowo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaa74df6-888c-4086-a3d7-37b8ca66a5f8/38656823998.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ee7c2cc-c180-4b20-85d6-92bc359cc57f/62377211477.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 extracted file (font_00_sfnt_off000064c9.bin)

Related samples 8

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_off000064c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C9 5092 bytes
SHA-256: 74a6908ce03cf98737e461b56d1b247e4a4eaadc146edbec8165cd9c2cdd6031
font_01_sfnt_off00007629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7629 10376 bytes
SHA-256: b304e81c72907cf6f0553b18938ee452ffc1ceb87610f772c258a0e2f44ae724

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