Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ea317072db9e2ed…

MALICIOUS

PDF

76.2 KB Created: 2021-02-05 13:06:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 520862884d29e552ce56af5267738098 SHA-1: e48575c2319a024f5379df51946a8136ac62b84a SHA-256: 8ea317072db9e2ed36f0b92dff52ab32306c2fb616d497208f8cfa81c6d75ad0
146 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 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.
  • 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://jottigo.ru/wb?keyword=emirates%20id%20application%20form%20validity PDF link annotation
    • https://cdn.sqhk.co/xovikojux/iihQDnJ/geometry_dash_meltdown_all_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/tomubozes/hbbzgfo/vovefeniw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458849/normal_600315ac4fe35.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisimak/FjdzMii/bmw_car_hd_wallpaper_phone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388596/normal_6013eff9acdd4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366311/normal_5ff6567fa6f6a.pdfIn PDF document text
    • https://cdn.sqhk.co/jedepazisu/t8tI1ii/36602749125.pdfIn PDF document text
    • https://cdn.sqhk.co/vuzonabudad/qBic4rb/16796432082.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vamuxusonepuf.rf.gd/calcutta_university_migration_form_2018.pdfIn PDF document text
    • http://zerekigukazaja.epizy.com/google_spreadsheet_run_script_automatically.pdfIn PDF document text
    • http://gebibem.epizy.com/xavubizexifo.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/55106156564.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/46386675163.pdfIn PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/mizapuruzimufoleso.pdfIn PDF document text
    • http://demaketimazo.rf.gd/liginotulapolawakun.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_off0000ee6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE6F 5420 bytes
SHA-256: 52cfe74b61eb01e24e48e0dba875caf72c878a7d91fcbc3f512d0f2a43b05999
font_01_sfnt_off000100d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100D9 10296 bytes
SHA-256: 9fbd5169064d6b6c4abd4c7e37fbaea5792818422ca265b820af209ed8893deb