Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ebb3baf38210bcc…

MALICIOUS

PDF

71.1 KB Created: 2021-02-17 06:03:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7ca8815597d1aeb24f11f71802bc23e9 SHA-1: a12b699099fde39ad17e40dacd4f4141e5718366 SHA-256: 0ebb3baf38210bccd5fd00f2b40549dacd1ff90689c376e0de698d33a3662f16
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://druttle.ru/wix?keyword=chapter+5+quiz+1+form+g+algebra+2 PDF link annotation
    • https://cdn.sqhk.co/ruxuvedije/jiiojhd/skater_jeans_urban_outfitters.pdfIn PDF document text
    • https://cdn.sqhk.co/gasajolop/iecggfs/antique_samurai_swords_for_sale_in_australia.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380854/normal_60089e951df62.pdfIn PDF document text
    • https://cdn.sqhk.co/pixorikibam/hfgegcS/xaxabisasesake.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503387/normal_60183759a4326.pdfIn PDF document text
    • https://cdn.sqhk.co/daxerarugak/egihdLS/strategic_human_resource_management_toyota.pdfIn PDF document text
    • http://official-win.xyz/anarcute_pc_free4mbl5.pdfIn PDF document text
    • https://cdn.sqhk.co/kinemefuwa/SoifgiO/lokiru.pdfIn PDF document text
    • https://cdn.sqhk.co/kedezoge/eihisie/zomiwopapolovevim.pdfIn PDF document text
    • https://cdn.sqhk.co/vimexuda/hfJ6jdI/wazutite.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379370/normal_60176617be595.pdfIn PDF document text
    • http://belkwigs.com/gowitenaruzuwif5zxm7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pogapebod.rf.gd/bronx_botanical_garden_map.pdfIn PDF document text
    • http://wajodojizofe.epizy.com/59306091148.pdfIn PDF document text
    • http://xojazexodiwosi.epizy.com/ladka_aankh_maare_song_ming.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/93175809622.pdfIn PDF document text
    • http://pufaperimixalet.epizy.com/cardboard_vr_box_template.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/baby_around_the_world_game_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/smart_av_antivirus_2019_free.pdfIn PDF document text
    • http://vasevun.rf.gd/19012396026.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_off0000d7f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7F2 5664 bytes
SHA-256: 5f57783d474ed0a840bb76744995d88912a61d30b617bd56883ebeddd4d434b8
font_01_sfnt_off0000eb1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB1C 10608 bytes
SHA-256: 884a07ba05867becafba7b25924ce5357fafa078ea41435473f97296f2d06658