Malicious PDF — malware analysis report

Static analysis result for SHA-256 5773aba57fd65045…

MALICIOUS

PDF

69.3 KB Created: 2021-02-23 20:25:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 69275e6dc8ba62f210601a218e39916d SHA-1: cae4e925383462abfd78d4191551e1ef2328781c SHA-256: 5773aba57fd65045383b9e6ddcc0ccc18af19cdba931ef191ea209ce892f1720
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wix?keyword=download+basketball+jam+mod+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4419235/normal_601b3bc17f769.pdfIn PDF document text
    • http://net-klientov.ru/sawurerowojogilotufopijoxozip.pdfIn PDF document text
    • http://ca-manalapan.space/online_attendance_management_system_project_in_androide6gbv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450427/normal_5fc8ffb4a371d.pdfIn PDF document text
    • https://noperutepa.weebly.com/uploads/1/3/4/7/134721309/2630355.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446647/normal_5fceab1ba4887.pdfIn PDF document text
    • http://vovpomnim.ru/livro_data_science_do_zerogl4hl.pdfIn PDF document text
    • https://pimujupaz.weebly.com/uploads/1/3/4/4/134440235/3825653.pdfIn PDF document text
    • http://meetlait.pro/clothes_dryer_consumer_reports_best_buyd38ag.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389568/normal_6032162380688.pdfIn PDF document text
    • http://scriptbook.xyz/rulugupujuzedenewizevduxj7.pdfIn PDF document text
    • http://salearea.pro/perunavesiu8og7.pdfIn PDF document text
    • https://zunovuxosuseso.weebly.com/uploads/1/3/4/4/134497136/nogatomaw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372378/normal_60057ebedc19e.pdfIn PDF document text
    • http://buyervannakupitvsem.xyz/wisapiwewubopareniwab0bon.pdfIn PDF document text
    • https://dexasarejujevi.weebly.com/uploads/1/3/1/4/131454537/wavipe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dinilederu/52134994411.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_off0000d0b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0B7 5380 bytes
SHA-256: 013794a2484dc887f6322518bcb282374e6278e1e80b23c2ef649f1c8555a30f
font_01_sfnt_off0000e30a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE30A 10812 bytes
SHA-256: 6fc70a68891ed412b35be29983ed44116483e1c1439ee41e1abd37f83aa7379c