Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e491a18d92b6e5c…

MALICIOUS

PDF

83.5 KB Created: 2021-03-16 00:47:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9db0d54c338bb9734a238a0dc62a8a98 SHA-1: 69a5198acbc10f24e52ba4875f74d589410a4b9e SHA-256: 0e491a18d92b6e5c4076ac273ceb6814359227eca3503c995588277e3b65a137
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://seumenha.ru/123?utm_term=blue+lightning+bolt+pill+report+2015 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4483856/normal_604d983048e5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413575/normal_5fdee41ae7211.pdfIn PDF document text
    • http://puveputado.sportsontheweb.net/tenosezidubuv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490953/normal_600e103e68981.pdfIn PDF document text
    • http://fetoxuk.mywebcommunity.org/carbohydrate_metabolism_chapter.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366306/normal_5fcefe3a9b557.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379626/normal_5fdf208fa04be.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454556/normal_5fff96793a666.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://karajifaderiwow.epizy.com/area_of_triangle_formed_by_coordinate_axes.pdfIn PDF document text
    • https://081e7fb2-604d-424b-9b75-a58d54a71a44.filesusr.com/ugd/abd6ea_649da0f777cf482f98d47ecfad1d7939.pdf?index=trueIn PDF document text
    • http://furaxem.rf.gd/cambiar_un_a_word_en_linea.pdfIn PDF document text
    • https://07bd7893-a6ec-44d5-90fe-c719e602c0bd.filesusr.com/ugd/aafaff_e1dbe0baab5d4416a9d8b9327659a461.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae711774-69e7-4778-bf51-951f15f0f046/hobart_4112_meat_grinder_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33aa8bc1-1ec6-4a59-a181-04803d901d16/97810933656.pdfIn PDF document text
    • http://fasevofal.epizy.com/66525063660.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/106bb26d-0536-4526-adc6-d7a936476323/where_can_i_get_my_dyson_fan_repair.pdfIn PDF document text
    • http://newabef.rf.gd/61905237055.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/752dccf9-1d50-4431-b020-0a7c0f779d8a/52219348753.pdfIn PDF document text
    • https://3e80c8bf-0031-4ca1-bfa9-4484641fefed.filesusr.com/ugd/08103e_84643cb6d3f643e58bf5eccb59276a61.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4bfca2e-8b1f-49d2-b7b3-7e1de2738806/el_seor_de_las_moscas_personajes_principales_caracteristicas.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

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_off00010903.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10903 5332 bytes
SHA-256: 65f96cc867d12367a962b232f8e52076ed56352cf52ee1beb7bfd21b5da9ab12
font_01_sfnt_off00011b2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B2C 10980 bytes
SHA-256: 5dbc151180dfd8d28a4265a77d4e931c27a2706c79eb8b981bd66cc32a3aa50b

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