Malicious PDF — malware analysis report

Static analysis result for SHA-256 a290e82c55dc8607…

MALICIOUS

PDF

77.1 KB Created: 2021-03-01 02:43:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: aa0d979879a05d1fdc04b6b34ac30023 SHA-1: c97f12f03f447cf4ba3260f763c3bb75b7d657f1 SHA-256: a290e82c55dc8607ac2f83d7b59aff684914e7823b2ba25aa7d0dd949f878453
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://jacksth.ru/strik?utm_term=how+to+draw+a+rose+realistic+but+easy PDF link annotation
    • https://cdn.sqhk.co/tubadaluzafu/vidgjjh/slot_machine_jammer_app.pdfIn PDF document text
    • http://tejasatobes.medianewsonline.com/how_to_answer_nclex_pn_style_questions.pdfIn PDF document text
    • http://koponegigat.medianewsonline.com/how_to_read_a_carbon_monoxide_detector.pdfIn PDF document text
    • https://cdn.sqhk.co/gujuvizaja/ehaEjcA/69682543836.pdfIn PDF document text
    • http://nefozufovi.scienceontheweb.net/what_happens_if_you_take_a_nap_with_contacts_in.pdfIn PDF document text
    • https://cdn.sqhk.co/zigotimuti/i6ghzgh/asphalt_nitro_online_pc_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/xibetevoxaj/b2eBdOu/royal_farms_arena_seating_chart_disney_on_ice.pdfIn PDF document text
    • http://lazirawolewok.getenjoyment.net/tuwifobiruzisofunisuvowu.pdfIn PDF document text
    • https://cdn.sqhk.co/vuguvorexi/eifjbDL/nintendo_switch_parental_controls_meme_compilation.pdfIn PDF document text
    • https://cdn.sqhk.co/dudilabatod/ibDxheB/dora_s_world_adventure_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/wusezofetib/AKNfJgi/blooms_taxonomy_verbs_chart.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/islamic_website_templates_wordpress.pdfIn PDF document text
    • http://vejegaba.atwebpages.com/netgear_gs108ev3_switch.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/cover_page_of_financial_report.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/bodapapulavigovazalaru.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/23059444827.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/ayodhya_songs_masstamilan.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/body_language_definition.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_off0000eff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF0 5228 bytes
SHA-256: 17d8a152fff78b8d4df1d15ed7d01ee2e7e9a32073406d98fdcfa445f3f725ea
font_01_sfnt_off000101d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101D6 10928 bytes
SHA-256: 554c4763125ed1d524af5dd4ba69bf3b8b30d07f8b26cbe24ef90dd0f857c9d3