Malicious PDF — malware analysis report

Static analysis result for SHA-256 92fd23706bdf342e…

MALICIOUS

PDF

67.5 KB Created: 2021-01-29 22:13:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 237b5cd00288b2f9742706acf80e8c09 SHA-1: 07e30749269c535d06c0d6c0cae9c97cf18e105e SHA-256: 92fd23706bdf342e399fc44de64344df71827a2536e81a7653d7d6a98e197a43
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://baarspo.ru/wb?keyword=pics%20word%20level%20223 PDF link annotation
    • http://wetepuzasuvuroz.22web.org/a_letter_images_in_heart.pdfIn PDF document text
    • https://cdn.sqhk.co/fotenulutis/gjbVhfV/vegipipolosezajetewolamul.pdfIn PDF document text
    • http://renijulemigato.iblogger.org/brie_formaggio_come_si_mangia.pdfIn PDF document text
    • http://sozetil.66ghz.com/ultimo_mapa_tomtom_iberia_2018_android.pdfIn PDF document text
    • https://cdn.sqhk.co/getabemuto/iaIghic/hacker_simulator_tycoon_mod_apk_unlimited_money.pdfIn PDF document text
    • http://nefuzixitelu.iblogger.org/chasing_summer_sir_zip.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vutesupazidoz.epizy.com/angel_of_mine_2019_parents_guide.pdfIn PDF document text
    • http://besipopi.epizy.com/battlefield_1943_pc_iso.pdfIn PDF document text
    • http://sibubixusa.epizy.com/85364186158.pdfIn PDF document text
    • http://wekujugom.epizy.com/catch_22_movie.pdfIn PDF document text
    • http://wojegopuda.rf.gd/meforumulafavemajalitobop.pdfIn PDF document text
    • http://lazevemu.epizy.com/cpc_certification_study_guide_free.pdfIn PDF document text
    • http://deburukibovip.rf.gd/discounted_payback_period.pdfIn PDF document text
    • http://zubafazebet.epizy.com/gyproc_plaster_guide_booklet.pdfIn PDF document text
    • http://vaguwiraji.rf.gd/android_update_for_galaxy_s6_edge_plus.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_off0000cb3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB3E 5172 bytes
SHA-256: 4deb74090fb9b72c5068cf3261279a17dd4a99e8ee0117ca0c683261424991d2
font_01_sfnt_off0000dd02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD02 10828 bytes
SHA-256: 921869d0f46725beb9a4e530c504406d8964eec3821f263c35b9accb236d8b05