Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0967fa5f0b2112c…

MALICIOUS

PDF

81.2 KB Created: 2021-02-14 00:37:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4f7aabfde57bd36d70e9365b52622cdb SHA-1: 619aedaad74d390bb409f5602ee2d77052bf6ba0 SHA-256: e0967fa5f0b2112c826c78daba9bc7e2fd4714927152acf5df99752cf81b0a19
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/aws?utm_term=auto+tune+app+pc+free PDF link annotation
    • https://cdn.sqhk.co/loberutebe/fjbG6eJ/fundamental_definition_chemistry.pdfIn PDF document text
    • https://togoxijagujeg.weebly.com/uploads/1/3/0/7/130775712/9976003.pdfIn PDF document text
    • https://cdn.sqhk.co/karadirimose/vDuUgga/beautiful_wallpapers_for_whatsapp_download.pdfIn PDF document text
    • https://resagivet.weebly.com/uploads/1/3/1/3/131383325/8658560.pdfIn PDF document text
    • https://cdn.sqhk.co/vovewotutal/TNupheX/tofamabufafejaxinasasax.pdfIn PDF document text
    • http://doweryklkq.space/hp_windows_server_2012_r2_standard_rok_iso_downloadea5j1.pdfIn PDF document text
    • https://cdn.sqhk.co/nivatasob/0uphaOc/83334986578.pdfIn PDF document text
    • https://cdn.sqhk.co/vawupemowa/hggdIid/wogitotenilapulowefetap.pdfIn PDF document text
    • https://dujakoxuk.weebly.com/uploads/1/3/1/4/131483447/vulomifojesudo.pdfIn PDF document text
    • http://dapodulasopo.iblogger.org/alt_j_discography_free.pdfIn PDF document text
    • https://cdn.sqhk.co/wejupexuput/jdqibja/can_you_escape_level_11_free_apps.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/rogugagatuf/types_of_chemical_bonding_worksheet_answers.pdfIn PDF document text
    • http://jojerigexorow.epizy.com/enhancing_qualitative_characteristics_of_financial_information.pdfIn PDF document text
    • https://s3.amazonaws.com/sitozi/alteryx_designer_2019._3.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/enterococcus_faecalis_bacteremia_guidelines.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_off00010382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10382 4788 bytes
SHA-256: 54d3408ae4bdac8dcb03fe933d4780190fa140109b5ca43a5a7327c450e693e4
font_01_sfnt_off000113e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113E0 10632 bytes
SHA-256: 3e2931d001dd7a590c07a9abc117743e54856c52c6e4c69721d9112108dc0469