Malicious PDF — malware analysis report

Static analysis result for SHA-256 10a854c17ae2892c…

MALICIOUS

PDF

60.7 KB Created: 2021-02-10 16:56:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2bbd7bdffc2f7992f638929a3bfd8cee SHA-1: 494585d1704950c51d32d11f5257b38f66b773d8 SHA-256: 10a854c17ae2892c4c07f1d9efb09037ba68d5c2059ac4eba1b576a4e6eb43d6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://baarspo.ru/aws?utm_term=charlie+malayalam+movie+ringtones+free PDF link annotation
    • http://sizuxubotinukor.22web.org/alberta_works_cheque_reporting_line.pdfIn PDF document text
    • http://worldthailand.fun/fomobd8ubo.pdfIn PDF document text
    • https://cdn.sqhk.co/zifiguwosu/gKghGjf/puzzle_dragons_z.pdfIn PDF document text
    • http://odebayitrafikhizmeti.com/zombie_combat_actionb3myf.pdfIn PDF document text
    • http://allostar.buzz/bavuxabogelanobubeduojs0s.pdfIn PDF document text
    • http://tramlaweq.online/healthcheck360_phone_numbercfojs.pdfIn PDF document text
    • https://cdn.sqhk.co/mawejoxejobe/khiyQgd/sonazukolun.pdfIn PDF document text
    • http://health-top.ru/las_aduanas_y_el_comercio_internacional_miguel_cabello_perezokqq6.pdfIn PDF document text
    • http://fartook.online/ekrem_yekrek_gnlk_planjlqwi.pdfIn PDF document text
    • https://cdn.sqhk.co/bojojiweg/30hc9Fi/visual_studio_code_connect_to_azure_devops_server.pdfIn PDF document text
    • http://juilopkiretlo.ru/dopuxalomitisudejojego8pzj8.pdfIn PDF document text
    • https://towavakivuno.weebly.com/uploads/1/3/5/3/135318123/gakuful.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mobopufo.rf.gd/nfl_game_pass_android_app.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/commercial_invoice_for_customs_clearance_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/simamulupotividil.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_off0000b267.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB267 5248 bytes
SHA-256: 76eeddd92415ecbd1624f473e788e4fa6f655aa41bab5418c0d188ff10b2e6ad
font_01_sfnt_off0000c423.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC423 9992 bytes
SHA-256: 8e1e13f40ef9737eb3f835e16bec84a0f499090fdfdeb1f0e1c1b71cbf081c44