Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d89e36c8bb1599…

MALICIOUS

PDF

50.9 KB Created: 2020-10-21 03:43:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-27
MD5: b3d30c9119b9030ea38473d2932d44da SHA-1: b397279e3bb2ec2d98d6e95301df38e7fbe110ea SHA-256: c5d89e36c8bb1599f2a9bc249ef2d6dc1ad0dc1f2dc07395ffbbf554c675d69e
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://ggtraff.ru/strik?keyword=the+art+of+procrastination+a+guide+to+effective+dawdling+lollygagging+and+postponing+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369522/normal_5f8f249b34d37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367302/normal_5f8741679d531.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373004/normal_5f893e580b855.pdfIn PDF document text
    • https://lowizozexide.weebly.com/uploads/1/3/0/7/130776176/mepolulugoguxo-xunij-furawikog.pdfIn PDF document text
    • https://xuwuperozaposa.weebly.com/uploads/1/3/2/3/132303395/3996995.pdfIn PDF document text
    • https://mamexobupelo.weebly.com/uploads/1/3/1/3/131383482/lemavetobowogis_vexakopasejo_sositefafum.pdfIn PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/c84743950.pdfIn PDF document text
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/2080317.pdfIn PDF document text
    • https://dosaremuxabibi.weebly.com/uploads/1/3/0/7/130739916/nijivejutiribax_noxeru.pdfIn PDF document text
    • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/6466201.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/rugatu-rugot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/subud/79342657171.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/jurnal_bani_abbasiyah.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/beginner_workout_at_home_without_equipment.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/654184924.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/25081980157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/0079/1715/files/suzuki_drz400_manual_cam_chain_tensioner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8746/8980/files/anti_inflammatory_diet_for_chronic_pain.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2536/6165/files/3867495979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/8881/7562/files/4952401388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/1541/6219/files/fesovasasamitubomesi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ef094f3-bc3a-4686-9e9b-c53cca148167/31888862306.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ddf5638-7075-437c-ad4f-d5f868165b19/50744889524.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8356b64-6757-4854-9982-a7b1b93d3b95/125456170.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_off0000869d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x869D 5620 bytes
SHA-256: 4eb85538bbac1724801084e17fd78350b37520941133cc85541f0e2a1caf939d
font_01_sfnt_off000099d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99D1 10240 bytes
SHA-256: cd205713e6dbc38149c9106fe7b6c60526e068c9eedb0c127a2995b754fe270f

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