Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea8ab42d575d3f79…

MALICIOUS

PDF

72.1 KB Created: 2021-03-07 17:44:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b8dae69b09ab999f46d8dbb549e92222 SHA-1: 6e0dce998032050ccfe5c9b416b54f519c701eda SHA-256: ea8ab42d575d3f79054e9c111e514d7304bde513fff8080e0e1efd8cf6dee082
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://dugedepap.ru/award?keyword=nissan+50+electric+forklift+specs PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4459325/normal_5fe3e9bc72343.pdfIn PDF document text
    • https://cdn.sqhk.co/xonipavu/dvdjage/blank_chore_list_printable.pdfIn PDF document text
    • https://povurekeziduzeb.weebly.com/uploads/1/3/2/7/132740384/zidowijul-mofedozuraxekim-riratavediso.pdfIn PDF document text
    • https://cdn.sqhk.co/wizevomorofe/ejgicjh/evacuation_plan_by_jacob_billings.pdfIn PDF document text
    • https://zugimawaxudal.weebly.com/uploads/1/3/1/4/131410952/511894.pdfIn PDF document text
    • https://cdn.sqhk.co/zovaratigu/a0StpeE/rodipalejoj.pdfIn PDF document text
    • https://xabogiseduwa.weebly.com/uploads/1/3/4/7/134717421/5ef64eee4.pdfIn PDF document text
    • https://zedimubaxujejit.weebly.com/uploads/1/3/4/7/134715534/9694929.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490936/normal_5fe4d4810a8cb.pdfIn PDF document text
    • https://cdn.sqhk.co/xumesapaxoku/mhiijQU/picsart_photo_studio_download_pc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369505/normal_602d231fc9477.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/jiwotarotavuz/wewawofafijaruno.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/compare_two_spreadsheets_in_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/66406452214.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bacae3e-0d5e-4279-8367-7568a3907bc8/50952326456.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/pick_a_number_answer_questions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15bd858f-b351-43f5-be12-6176165c71bb/93346860297.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1761061a-7a12-4049-8120-273648288181/fagubotesitipu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb80eb05-b611-4096-9443-6767abc245a8/tecnicas_de_recoleccion_de_datos_en_investigacion_ejemplos.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/xatejemogenozepora.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/clinical_guidelines_carotid_stenosis.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/32088603699.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_off0000dc60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC60 5308 bytes
SHA-256: ebb5503c4d369a74632b36ace7b0308823c52f2a6539c1ed7d755532fcf4a91b
font_01_sfnt_off0000ee88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE88 10636 bytes
SHA-256: 58f78fef99b5513c72c3829a906c60658cff22fc1a43038c14fc1fd8658b3de4