Malicious PDF — malware analysis report

Static analysis result for SHA-256 eebf07ab81e38bbb…

MALICIOUS

PDF

43.9 KB Created: 2020-10-18 17:41:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 2f8205fa11f3f9d213f21419e0603f88 SHA-1: 5923630d4c92002cfbbe73ddb03fe3ee27ecfeec SHA-256: eebf07ab81e38bbbe296a64ea03f48f25d3575cbdb90ec3cbdc447f72a2f9dd0
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=mavi+okyanus+stratejisi+nedir In PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/d2af5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366020/normal_5f874fde868d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375351/normal_5f8b848491488.pdfIn PDF document text
    • https://pudegubazamase.weebly.com/uploads/1/3/1/1/131163945/6377884.pdfIn PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/novexefodepomuro.pdfIn PDF document text
    • https://derodaju.weebly.com/uploads/1/3/1/6/131606282/zovepo_nawetin_kagidize.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/9031774.pdfIn PDF document text
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/7a4f87f3163d.pdfIn PDF document text
    • https://labajilawuja.weebly.com/uploads/1/3/1/4/131406369/lumominukene.pdfIn PDF document text
    • https://pezopipowom.weebly.com/uploads/1/3/1/4/131406060/lonew_xexasar_benavuvi_kipako.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006c20.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006c20.bin)
    • https://uploads.strikinglycdn.com/files/397c3d40-6f03-4d04-953d-c8e972e6a9fa/3270691445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9c85969-2074-47a8-ae55-00da9893fafc/67920597476.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ed1d510-ea76-4723-85a3-d233a7e7c29b/pawivu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/662fc61e-df12-4832-8d48-101703e451d7/tovigimetepiwuzudel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e5c8f7b-0876-4777-b86c-3e34c4cd69d5/xeserotagajuwotifagab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4494/5051/files/nissan_online_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3382/9271/files/in_public_policy.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_off00006c20.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_off00006c20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C20 5096 bytes
SHA-256: b9dfccb41825a42e7a0db1157040dc95839c6c40f1590fb90743f36d40a99d7a
font_01_sfnt_off00007d98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D98 11288 bytes
SHA-256: 22eecb9479402ea3f46a4b11fa1aaecc7cbee198c34974e3a3c858dab7200eaa

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