Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0b897b1cecef1db…

MALICIOUS

PDF

70.8 KB Created: 2021-02-21 04:53:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f1017ff06163b61eebf6828fbe70b3bb SHA-1: c6370993654491f3ac264faecd8c3bc473d33fe3 SHA-256: f0b897b1cecef1db977293b41f28ef43eade7d9537427986e4aafaf3d093ec22
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/wix?keyword=crisis+on+infinite+earths+giant+%25231+pdf PDF link annotation
    • https://lowarimubabop.weebly.com/uploads/1/3/4/7/134712264/vitomeli_tuzifukijuridu.pdfIn PDF document text
    • https://cdn.sqhk.co/mogizufofuj/eSNKjdr/lawedazulunujatitazek.pdfIn PDF document text
    • https://lobumemimakagom.weebly.com/uploads/1/3/3/9/133999871/fofajotobagono.pdfIn PDF document text
    • https://mikezibe.weebly.com/uploads/1/3/1/4/131453119/c566b55.pdfIn PDF document text
    • https://cdn.sqhk.co/velabolo/hema6jc/michigan_weather_radar_forecast_tomorrow.pdfIn PDF document text
    • https://cdn.sqhk.co/xorilulog/QdJEgjj/9521723207.pdfIn PDF document text
    • http://sdorovie-sustavi.xyz/small_merge_split7y2tl.pdfIn PDF document text
    • https://bogigusojuvifu.weebly.com/uploads/1/3/4/3/134316749/wajasa_fiteriwelimi_gikulep_sarukuzakos.pdfIn PDF document text
    • https://bunekapizo.weebly.com/uploads/1/3/0/9/130969144/vuxozaxevo_bagumefux.pdfIn PDF document text
    • http://monoga.space/91250038699wj8of.pdfIn PDF document text
    • https://cdn.sqhk.co/kadukugobug/r5jghfd/gavuvo.pdfIn PDF document text
    • http://cafechorsu.ru/407457043839ffnx.pdfIn PDF document text
    • http://zumbayuliya.online/xuwibuxubiwofuxarul6mfrn.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/tedowafomaru/miami_beach_police_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/how_to_change_battery_in_beurer_scale.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_off0000daa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAA7 4900 bytes
SHA-256: 677bd07746b93eb9d041d0ee33bf0c021eeaefba51b071267368bef874d717b9
font_01_sfnt_off0000eb4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4D 10268 bytes
SHA-256: dea7968454e0c51dde0290ef7b7ee42d103d5e5a619349f27fc8fe88346dc349