Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c82a7ec6b9f5593…

MALICIOUS

PDF

72.7 KB Created: 2021-02-24 17:22:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 4f461f3ca835cd9b3103962ad74c0831 SHA-1: ad0464f4a2e34a2f5664930d72dae9fd57a0677f SHA-256: 8c82a7ec6b9f5593dc674b91bfcb4e97f3aab0e10133ab729749011d3b2b18dc
126 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
  • 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://jottigo.ru/award?keyword=sorc+hunting+guide+tibia PDF link annotation
    • https://cdn.sqhk.co/rufebumu/jsTc9id/jogunavivijavenexomu.pdfIn PDF document text
    • http://pogawubujogeje.mypressonline.com/wordpress_admin_password_reset_phpmyadmin.pdfIn PDF document text
    • https://cdn.sqhk.co/sesexibanobu/icgtjhg/cake_recipe_gluten_free_dairy_free.pdfIn PDF document text
    • http://raguvigawak.mypressonline.com/walonanafatemuji.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/garmin_gtn_750_installation_manual.pdfIn PDF document text
    • http://kewujedirolut.22web.org/datakawetobasamazijejabar.pdfIn PDF document text
    • http://wedipum.mygamesonline.org/how_long_does_navy_training_last_in_nigeria.pdfIn PDF document text
    • https://cdn.sqhk.co/litopozuf/k2hcIZp/vofomafi.pdfIn PDF document text
    • https://cdn.sqhk.co/lojibuwe/awhbify/46144917706.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kapirexazi.onlinewebshop.net/what_do_millionaires_think_about_poverty.pdfIn PDF document text
    • http://jawikiluzejibe.epizy.com/39046198152.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/disgaea_hour_of_darkness_leveling_guide.pdfIn PDF document text
    • http://vubelifijam.atwebpages.com/57413766852.pdfIn PDF document text
    • http://sagalesokalu.epizy.com/latest_bollywood_mkv_movie_free.pdfIn PDF document text
    • http://petojijoxura.onlinewebshop.net/spring_framework_guru_swagger.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/11071685445.pdfIn PDF document text
    • http://kezaforow.epizy.com/backup_contatos_celular_android.pdfIn PDF document text
    • http://jisijuvod.myartsonline.com/how_to_bar_a_soldier_from_reenlistment.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_off0000e292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE292 5232 bytes
SHA-256: 921a49ed6dc942ab57e1a4c98812830ffda44a7267637ff96aa19bb2e87ea542
font_01_sfnt_off0000f44e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF44E 9876 bytes
SHA-256: e72c37e71aeac44d1fad090a46c1d329c8f0084e2d9493caa28ee94f49bd5f43