Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed785010e1d9a2b…

MALICIOUS

PDF

69.9 KB Created: 2021-02-09 22:11:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 30129af58b42e712db19fd63e0c590c7 SHA-1: 8c781093eaecca88c21320ebc3e063c4a4c926a4 SHA-256: 0ed785010e1d9a2b1d6fe0d0fec54167c439d534fb16eaeeb4af953b7d35ad25
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=cds%202019%20application%20form In PDF document text
    • https://cdn.sqhk.co/beledufe/LTHA6ic/food_places_near_me_breakfast.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384472/normal_5ff6d34e0b5a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470977/normal_600a879b1affd.pdfIn PDF document text
    • http://kiwufaninini.22web.org/hubspot_sales_certification_test_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/veludewozen/zV6heja/hakuoki_memories_of_the_shinsengumi_gameplay.pdfIn PDF document text
    • http://gebojiwikidavu.iblogger.org/identifying_bottlenecks_in_informatica.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404124/normal_5fd15cbe6891f.pdfIn PDF document text
    • http://zelafagilu.iblogger.org/army_adp_study_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wokobunowome.epizy.com/assiette_champenoise_guide_michelin.pdfIn PDF document text
    • http://lepevalir.rf.gd/72852276931.pdfIn PDF document text
    • http://fusutunililafu.epizy.com/english_fal_lesson_plan_template.pdfIn PDF document text
    • http://kidojudal.epizy.com/bheja_fry_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/pataal_bhairavi_full_movie_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/demokipobobepuzise.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/l_attacco_dei_giganti_3_sub_ita.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_off0000d3f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3F4 5688 bytes
SHA-256: b57d0ad31422b417726eab8102811739d1dd7f40a2fb271f5e1a6e6e8a58f543
font_01_sfnt_off0000e735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE735 10556 bytes
SHA-256: eeeea2a9dff7ce74a6df5818753839a556bd99568abb532e416389181b648c97