Malicious PDF — malware analysis report

Static analysis result for SHA-256 84b291ba9992ddfb…

MALICIOUS

PDF

64.9 KB Created: 2021-03-02 20:45:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0114dc4360a7eaa75b781314f084baa8 SHA-1: 59d3eef5de19f85ec6587b8d67ad46295befb018 SHA-256: 84b291ba9992ddfb15924655a6f35b590296d2970d2ba1c18adb63e6d9ef2e5b
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://golowaki.ru/award?keyword=halo+fall+of+reach+pdf+download PDF link annotation
    • http://xafopawiki.medianewsonline.com/what_obd1_and_obd2.pdfIn PDF document text
    • https://cdn.sqhk.co/kutajanode/rWheiii/jusevov.pdfIn PDF document text
    • https://lawuzifelive.weebly.com/uploads/1/3/4/0/134041442/kagatovoteta.pdfIn PDF document text
    • http://wugupomovupa.sportsontheweb.net/9193664593.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499285/normal_5fe49d8c9614c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370529/normal_5ff963d2c9f6d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476010/normal_5ffb8ea8e0f8d.pdfIn PDF document text
    • https://cdn.sqhk.co/loziromegon/8fiaZgc/pogumalilugipajanaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449014/normal_5fe9e70441259.pdfIn PDF document text
    • http://jiteruruw.sportsontheweb.net/35957313011.pdfIn PDF document text
    • https://cdn.sqhk.co/ninulekuto/JtDjhgi/gexugu.pdfIn PDF document text
    • https://mesajenijapab.weebly.com/uploads/1/3/0/9/130969967/kodur-xigusafigaje.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/jujojomojemiz/android_10_for_k20_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/mathematical_analysis_2_canuto_tobacco.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/business_analyst_approach_document_template.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_off0000c363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC363 5116 bytes
SHA-256: aa41035aba40d5ac2dbe334540cbce6ebdb7d1b69af1acf858845e13321418df
font_01_sfnt_off0000d4d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D6 9904 bytes
SHA-256: 17d0ef3078ad23b2d1c890442fa9dd296bdecc17b7ecfda5903bba4d00325970