Malicious PDF — malware analysis report

Static analysis result for SHA-256 27ff155974b5966e…

MALICIOUS

PDF

41.3 KB Created: 2020-10-05 22:40:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a6510fc103f1973d3d6e0df233d5b197 SHA-1: b94531c8ef2d2f86b39f156ffa6312a1e0de50d1 SHA-256: 27ff155974b5966ef9c872447520af48fcd00bd78482b1960764f769d3ef791f
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/strik?keyword=harry+potter+books+banned In PDF document text
    • http://vanelerim.rebeccajoymohrlang.com/uploads/1/3/0/7/130776447/37b93c6576c9af.pdfIn PDF document text
    • http://bozifosen.pobny.com/uploads/1/3/2/6/132695569/38197.pdfIn PDF document text
    • http://wubevopu.amoderneducation.com/uploads/1/3/1/3/131381886/1244396.pdfIn PDF document text
    • http://visemovev.modelfarmroadchildcare.com/uploads/1/3/2/7/132741615/mirepawinemamax-lokuralis-juwokebodad.pdfIn PDF document text
    • https://site-1037101.mozfiles.com/files/1037101/27057239092.pdfIn PDF document text
    • https://site-1036735.mozfiles.com/files/1036735/tawedudebezigivage.pdfIn PDF document text
    • https://site-1036745.mozfiles.com/files/1036745/50523986714.pdfIn PDF document text
    • https://site-1037166.mozfiles.com/files/1037166/kewawowotefifivus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1504/4254/files/2157396822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6353/2959/files/key_of_e_minor_guitar_scale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8794/8693/files/1830258620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/11235263286.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/773c9352-52c6-4935-80f1-931659e671d4/69332233811.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaf125b4-9888-4e71-aa22-16a5ae6ba4f4/36788882921.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_off0000639e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639E 5188 bytes
SHA-256: de5b596695938bf80fd97fe9d0c34a08e8ef34cd4aabeb15239b50ef37cd588d
font_01_sfnt_off0000754e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x754E 10260 bytes
SHA-256: 5290f41553ef579b06662506afcc3d2881cbe17153f66000f0c0caa6d9d81bca

Open this report in the interactive analyzer, or submit your own file for analysis.