Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1232975ff730c0b…

MALICIOUS

PDF

77.7 KB Created: 2021-06-01 00:54:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60dd4b7c7c4633fea34d17478b8de8f0 SHA-1: b4119706d5cdfc2ef5e2bfea11cec2d97cc30df5 SHA-256: e1232975ff730c0bc17c11f74aeb00472ca7f79e424b482f548f305c964304b4
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to trick users into visiting a malicious site, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dafemum.ru/123?utm_term=batla+house+movie+hd++2019
    • https://jedozemuko.weebly.com/uploads/1/3/4/5/134596711/dobimatuvil_sosopogaferu_sodedufopeni.pdf
    • https://nizikalod.weebly.com/uploads/1/3/4/6/134605229/xomot_suzexepuduragu_damowumarofivez.pdf
    • https://static.s123-cdn-static.com/uploads/4493221/normal_5ff81fdb9e50d.pdf
    • https://cdn-cms.f-static.net/uploads/4486200/normal_6018af5ec56fd.pdf
    • https://kokuxokuge.weebly.com/uploads/1/3/4/7/134771281/pofewubupero_xegudanamivete.pdf
    • https://static.s123-cdn-static.com/uploads/4476751/normal_6007b53d8e624.pdf
    • https://cdn-cms.f-static.net/uploads/4455645/normal_6065d6bc6d4da.pdf
    • https://lesapexif.weebly.com/uploads/1/3/1/6/131637780/mejewolexawares-meveranonedupa-wanuvagenurim-zuvobetezem.pdf
    • https://cdn-cms.f-static.net/uploads/4466662/normal_601ce98d59a7b.pdf
    • https://static.s123-cdn-static-d.com/uploads/4417139/normal_60aff3154cc66.pdf
    • https://cdn-cms.f-static.net/uploads/4389823/normal_603f42c8e9fe5.pdf
    • https://static.s123-cdn-static.com/uploads/4388842/normal_5fcc209b383e8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6d312759-a2ab-4a39-9b7d-856540681fff/interview_questions_for_hr_manager.pdf
    • https://uploads.strikinglycdn.com/files/ede72ed9-9ffa-49c7-b533-4f6b8c28420b/what_is_the_2nd_language_in_usa.pdf
    • https://uploads.strikinglycdn.com/files/453cb430-a19d-4173-a18f-904913b0e67f/45623493934.pdf
    • http://bupataved.pbworks.com/w/file/fetch/144428868/bidofozuwetomibunibidim.pdf
    • https://uploads.strikinglycdn.com/files/e853507d-996f-48fc-a244-bf0b9420a31c/elements_of_system_approach_in_education.pdf
    • http://visetululiv.pbworks.com/w/file/fetch/144422265/modo_de_produccion_primitiva_caracteristicas.pdf
    • http://nigezid.pbworks.com/w/file/fetch/144427968/15.3_applications_of_genetic_engineering_workbook_answer_key.pdf
    • http://xojifot.pbworks.com/f/dopotikixexot.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0c9.bin
0c30b0bf313c92ed26078ffc9fa50408df342505f7b023b6ff18dca9f76c632c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C9 5560 bytes
font_01_sfnt_off00010394.bin
cfa0e583dc58a2fb21911a737ddc05d75cd1fdffafe33749566ac796a1993a95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10394 11324 bytes

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