Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d25a5f80ac5f66a…

MALICIOUS

PDF

40.6 KB Created: 2020-10-26 06:57:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 2001e6b07c912194ca376ec687d20220 SHA-1: fe6633368a068264a125390081b427581d5f2cdb SHA-256: 3d25a5f80ac5f66a0d1767cdaf03ee7b621aa8e8394c3b43b50b736628cdbf8a
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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/aws?keyword=meditation+marcus+aurelius+pdf+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4407085/normal_5f93c72527e24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394082/normal_5f93b14841035.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366027/normal_5f881b2a87dbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378607/normal_5f8b1048c5704.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/kedoxezezaj-temolej-zunemalavorun-mutelokowomimi.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/4e0d994f.pdfIn PDF document text
    • https://nulixedupalaz.weebly.com/uploads/1/3/0/7/130739510/gavijuvoz_banefesurano_xupubinazerek.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/batagebexi.pdfIn PDF document text
    • https://tuzuvujejoru.weebly.com/uploads/1/3/4/4/134442534/2fa2cb12808d.pdfIn PDF document text
    • https://xojisige.weebly.com/uploads/1/3/1/6/131637148/cd019fb0.pdfIn PDF document text
    • https://dokakida.weebly.com/uploads/1/3/1/3/131380589/5793afee29327b.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/jevaret.pdfIn PDF document text
    • https://nulixedupalaz.weebly.com/uploads/1/3/0/7/130739510/puzapekoli_rezika.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005f88.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005f88.bin)
    • https://s3.amazonaws.com/dinisemowoge/12852083925.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/clinical_pharmacy_therapeutics_roger_walker.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/dagopeg.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/aua_symptom_index.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a03473f-5212-4bfd-af5a-bf7e517ad6ee/wemixem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9eb4dbe-b8a0-4797-8912-9d704b6bc094/red_tagging_5s.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9132ca2d-e59e-4630-9660-acf5cdf536c6/jelugirazipadafazumow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fab0ed1-f3f6-40b1-8071-8683fab1ade6/7312280589.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d359f524-013a-42bb-a9fd-a24e3e35e5bc/78845212312.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_off00005f88.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_off00005f88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F88 5400 bytes
SHA-256: d4fd17e62462a3f0e03277071f527f8dbecc66141cf258d7b4a9463d5fe10acc
font_01_sfnt_off000071e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71E7 10100 bytes
SHA-256: f408433dac42848a5ca553ce2c5912de47fb518e7cbc1bc57edd37f4ddd59e92

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