Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e06938b54e08995…

MALICIOUS

PDF

72.0 KB Created: 2021-03-05 02:40:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2fcf23961e557ca772304545b1b824fe SHA-1: 00622c751b2210c8c94e3d91b9ab2d2e9ed5254e SHA-256: 3e06938b54e089957095194b81a2ec7c93497fc8e6d2af6967b2573a881da4ae
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://resalured.ru/award?keyword=how+to+import+goodnotes+templates PDF link annotation
    • http://pejokepi.mywebcommunity.org/whirlpool_top_load_washer_troubleshooting.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498997/normal_602f499aa137d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485568/normal_602fdf7ce0d5d.pdfIn PDF document text
    • http://nibofope.66ghz.com/35417995314.pdfIn PDF document text
    • http://jozipuvuwuzaj.mywebcommunity.org/45377682026.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459477/normal_60115f1cc72cb.pdfIn PDF document text
    • http://kazimibi.getenjoyment.net/ap_human_geography_study_guide_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nibizuladode.onlinewebshop.net/zegaridibebipun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4466591-7932-48b0-ba78-5c7d228a01d1/35587603597.pdfIn PDF document text
    • http://luwulifinuneti.epizy.com/chrome_rhel_6_rpm.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/yesterday_tamil_news_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/33396524656.pdfIn PDF document text
    • https://d80868e2-5d34-4dda-9345-0396294a35aa.filesusr.com/ugd/f9fac6_9164b5d3aaed4c5f85e8441c5560dbb4.pdf?index=trueIn PDF document text
    • http://dajupolix.rf.gd/book_of_lairs_2.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/7651330813.pdfIn PDF document text
    • http://kakasis.onlinewebshop.net/vufonodavowumexoben.pdfIn PDF document text
    • https://04a80c79-134c-446e-801b-0c1635678e59.filesusr.com/ugd/5cebf8_711d66f712d34076ab0f82e5e7a7edbf.pdf?index=trueIn PDF document text
    • https://98771922-91e4-4673-aa0d-7794f4435593.filesusr.com/ugd/b6aaa0_db61e337907344e1b28caa7482bcefc6.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jebokizez/is_deadpool_on_netflix_or_amazon_prime.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d87f37b7-6b61-4fe5-9dee-3d1ca22762f9/225748758.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_off0000de7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE7C 5332 bytes
SHA-256: 37c6bd58ff25e6d34d9380344d8cda36a0ec14ec985c1fa632a0331ed355d914
font_01_sfnt_off0000f096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF096 10028 bytes
SHA-256: 6ebcbc2185bf587bd40a6e3cebc0d130a3d2abab02c53069d0837b71fe1c5010

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