Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bb0d77f94c76144…

MALICIOUS

PDF

69.2 KB Created: 2021-02-27 13:29:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 98cfee9a5bd590d46bf7d9d44b6da35d SHA-1: 5b915fe0316b4724fb5105341ff899cf656118e1 SHA-256: 0bb0d77f94c76144a1853dee3862e73af070b2de15d5654720f2c85659e0938c
126 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
  • 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://ponafet.ru/award?keyword=walmart+hours+omaha+nebraska PDF link annotation
    • http://lixodamevurobar.mygamesonline.org/animal_encyclopedia_national_geographic.pdfIn PDF document text
    • https://cdn.sqhk.co/gatavikap/iiihge2/jojeguxilabosutif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369143/normal_5fda25de10a7d.pdfIn PDF document text
    • https://cdn.sqhk.co/rubutemoxe/I7IErid/draw_it_out_points_lines_and_planes.pdfIn PDF document text
    • http://cybety.xyz/444066356606xjce.pdfIn PDF document text
    • http://ximikilanad.22web.org/pizukaxiridifomavidedeguf.pdfIn PDF document text
    • http://ziminedefus.iblogger.org/15169058431.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418391/normal_5fd91a441f21e.pdfIn PDF document text
    • http://ogranicbio.space/54876563427omwg4.pdfIn PDF document text
    • http://vijevejumozugim.sportsontheweb.net/13105360182.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365636/normal_5fce16c727936.pdfIn PDF document text
    • http://fulusixavopowem.iblogger.org/definition_of_qualitative_research_approach.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445573/normal_5fee5555f182c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458618/normal_5fd22e6c5ed0c.pdfIn PDF document text
    • http://100p-f.ru/how_to_wear_a_merit_badge_sashh13f4.pdfIn PDF document text
    • http://jedomagisuw.getenjoyment.net/84907476044.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zubiluwetij.myartsonline.com/ludumawasenaz.pdfIn PDF document text
    • http://vakizonozajaxe.onlinewebshop.net/97168136873.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/learning_management_system_examples.pdfIn PDF document text
    • http://sovagawaz.rf.gd/womugozevopoxomifeluti.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/logos_quiz_level_10_answers_iphone.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_off0000d4a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A3 5144 bytes
SHA-256: 31b5efbde80cb6055a651d29dc22a16953902d4a10ca704ee3e4cc36810774cd
font_01_sfnt_off0000e5fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5FD 9784 bytes
SHA-256: 42b21ff521df8b27856de47e0f703b1f586653f54bbefaca974f68dcc068a513