Malicious PDF — malware analysis report

Static analysis result for SHA-256 86a662b9fb56fe17…

MALICIOUS

PDF

71.6 KB Created: 2021-03-10 02:30:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 87107a22ad25b08d307f68da66cdf003 SHA-1: aa85b3686559fcaad31ef6244f430725f58047f4 SHA-256: 86a662b9fb56fe17b44232ad02984bc15778186a0ce3fe35f24b71dd5bab0e74
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://seumenha.ru/award?keyword=bible+commentary+pdf+download PDF link annotation
    • http://airet.space/53538628458esmc.pdfIn PDF document text
    • https://rivadosogub.weebly.com/uploads/1/3/4/8/134880553/4012472.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/5682211384.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455902/normal_601f0dbf1af22.pdfIn PDF document text
    • https://bejivuvepezera.weebly.com/uploads/1/3/4/4/134437422/9311653.pdfIn PDF document text
    • http://nesarose.sportsontheweb.net/reverse_chronological_resume_sample.pdfIn PDF document text
    • http://bestunew.xyz/14965681880wf8ek.pdfIn PDF document text
    • http://toppiksnack.xyz/88167612619fxxum.pdfIn PDF document text
    • http://crawlmqyu.space/clinical_neurophysiology_mishra_free_downloadwebsz.pdfIn PDF document text
    • https://tubolapibakosi.weebly.com/uploads/1/3/4/8/134872187/7513132.pdfIn PDF document text
    • https://lomelamul.weebly.com/uploads/1/3/5/9/135994015/nametu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414847/normal_6014532b4353f.pdfIn PDF document text
    • http://paxibokojusaduw.22web.org/dangerous_fellows_game_guide.pdfIn PDF document text
    • http://sabovibin.medianewsonline.com/project_management_assignment_example.pdfIn PDF document text
    • http://gojawufeki.getenjoyment.net/m-audio_fasttrack_pro_driver_mac_os_x_download.pdfIn PDF document text
    • http://ruwegekugite.22web.org/lesusileduxumivakukuk.pdfIn PDF document text
    • https://lexikusu.weebly.com/uploads/1/3/1/4/131438729/19ec8011e11c.pdfIn PDF document text
    • http://cenderaoriginator.com/sirexuwof0k0b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tapoloferazuziw.atwebpages.com/15389918822.pdfIn PDF document text
    • http://lelisavebak.rf.gd/actinomycetes_producing_antibiotics.pdfIn PDF document text
    • http://poresiz.epizy.com/57564701837.pdfIn PDF document text
    • http://vigevelo.rf.gd/casio_fx_991_es_plus_user_manual.pdfIn PDF document text
    • http://numubujekan.rf.gd/facebook_post_video_format_size.pdfIn PDF document text
    • http://zijemuviwovo.rf.gd/43048984776.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_off0000dc1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC1B 5504 bytes
SHA-256: 55a51c2d47cae1dd9938cd9308f977d333540ef3d5a9386115a17ffb0da8f90d
font_01_sfnt_off0000eed2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEED2 9980 bytes
SHA-256: fdc1e7dbff18e61e038b01c89d9fbb8f8817f271698e650c1f2fb846172cdd08

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