Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0e60417b2af8f99…

MALICIOUS

PDF

76.0 KB Created: 2021-02-18 16:46:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9eeb99504712df222b6708627b44e9f1 SHA-1: 6351de5db08f08a745687dd375603bad5507ff03 SHA-256: c0e60417b2af8f99c75af9e68fe8ac90e2e3c1586953eeac44a0e6bcd0486d4c
184 Risk Score

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
  • 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://crophysi.ru/wb?keyword=philips%20smartsleep%20hf3520/60%20wake-up%20light In PDF document text
    • https://cdn-cms.f-static.net/uploads/4449605/normal_6025fc2077d88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370077/normal_601baf075bb01.pdfIn PDF document text
    • http://dimusenomi.iblogger.org/wejidamaliledisetagef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459177/normal_5ff0e1829c153.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473916/normal_6022559357957.pdfIn PDF document text
    • https://cdn.sqhk.co/depadukat/eEY94ha/dizotafakomul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370088/normal_5ff6b0d392bbc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367912/normal_600a849f5fb43.pdfIn PDF document text
    • http://jinokonur.22web.org/jukatap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mesuwepuru.epizy.com/vadiwini.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/shapes_of_molecules_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/letogirati.pdfIn PDF document text
    • http://visagiza.epizy.com/almanca_renmek_iin_kitap.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/chicken_curry_law_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/script_template_doc.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_off0000e4bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4BC 6256 bytes
SHA-256: 8e04af6234d83385f819f8d4f03ab234f9e2e077ee16bdfc9f2da26b64970ca3
font_01_sfnt_off0000f9f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F8 11948 bytes
SHA-256: 67deda6bf68b38cd10237edff1421974301d4ad15f2e3cbf1f61645cba6bef56