Malicious PDF — malware analysis report

Static analysis result for SHA-256 89fac92dc3a02701…

MALICIOUS

PDF

48.6 KB Created: 2020-10-01 13:05:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-30
MD5: b860403d95966b6f080c5a957d4f88ac SHA-1: d82b2abe17da64495b8f45a07238c00e67240595 SHA-256: 89fac92dc3a027019f85037304504bb5a8798cad686f449114d8a746f5aa9ece
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=campbell+biology+in+focus+2nd+edition+pdf In PDF document text
    • http://files.feathersmediums.co.uk/uploads/1/3/0/8/130813510/pejonekopaniguw_purofoxuwotig_zukifetasowiji_wuzitipisatipi.pdfIn PDF document text
    • http://files.csulbmie.com/uploads/1/3/1/0/131070247/gujesamo.pdfIn PDF document text
    • http://files.jordansgeneralstore.ca/uploads/1/3/1/3/131380354/famomarinumexog_siveni_bedefur.pdfIn PDF document text
    • http://files.tallywood.com/uploads/1/3/0/7/130738673/8682229.pdfIn PDF document text
    • http://files.bhsumath.com/uploads/1/3/2/7/132740424/5596496.pdfIn PDF document text
    • http://kawugi.saramwills.ca/uploads/1/3/1/3/131398234/69fb2229.pdfIn PDF document text
    • http://ramemima.mesquitegators.com/uploads/1/3/2/6/132681268/7a8f60.pdfIn PDF document text
    • http://files.espiralmana.org/uploads/1/3/2/7/132740598/f1c76.pdfIn PDF document text
    • http://zabidaf.marissabadgley.com/uploads/1/3/0/7/130739456/cf5716362.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007e66.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007e66.bin)
    • https://uploads.strikinglycdn.com/files/7111011f-183e-4be3-aedd-3c9cf29bedb6/siresekelagevejepap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1446ec1-9044-404d-a1ab-a8066ce5504a/77551384748.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6aa326d2-cf41-4641-b009-4d06860be560/95951819435.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0a2a130-9e26-44f0-844d-dba48b8b2c75/3612468119.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62b3e5df-1533-41b9-8818-90f8e3cc29b3/jowujamatojanodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2904/7707/files/8720537345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4931/2666/files/benefits_of_delegation_in_nursing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9801/1816/files/74590505547.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_off00007e66.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_off00007e66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E66 5656 bytes
SHA-256: bc70f4814402f76200dc70d75fd8072605b8e5a9f0a2c809b9acdd2caa5b6992
font_01_sfnt_off000091a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91A3 10420 bytes
SHA-256: 0b04478c77744bd83dfd644bd15e202701c86c51ab6e6992237215855b39c5cb

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