Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfc25c5de1c99ca2…

MALICIOUS

PDF

76.2 KB Created: 2021-02-17 12:11:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2caaabfd4bc9c42546b23fc34c1f7b79 SHA-1: 456d88c39555c8c5c42d8aba4759a776dd9358ac SHA-256: bfc25c5de1c99ca2cfdad3fe658438565134897f13a51de778853e4fea016842
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://jottigo.ru/wix?keyword=miley+cyrus+eyebrows+blog PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4378151/normal_5fd5f5ef9e938.pdfIn PDF document text
    • https://cdn.sqhk.co/sewizefaxiki/jjhegdy/gif_maker_gif_editor_video_to_gif_pro.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457011/normal_5fdd6ac31ad0e.pdfIn PDF document text
    • http://deflecfcvy.best/dogozadap6hjk.pdfIn PDF document text
    • http://gusitolife.iblogger.org/26112389254.pdfIn PDF document text
    • http://siankaanmexico.com/scratch_3._0_tutorialk53wu.pdfIn PDF document text
    • http://dixurujisefumet.22web.org/adding_subtracting_mixed_numbers_fractions_worksheets.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369149/normal_60004d2abbd54.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuxopova/bcbiajc/adderall_side_effects_symptoms.pdfIn PDF document text
    • http://freedate18.xyz/79705256318999af.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448740/normal_60078b0b03f58.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/hiihijh/91891924256.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kunijudodo.rf.gd/reporting_accidents_at_work_template.pdfIn PDF document text
    • http://defisunukotizid.epizy.com/acneiform_eruptions_pregnancy.pdfIn PDF document text
    • https://s3.amazonaws.com/pubopelej/performance_appraisal_form_sample_software_engineer.pdfIn PDF document text
    • http://xuneviwek.epizy.com/verizon_fios_quantum_gateway_router_firmware_update.pdfIn PDF document text
    • http://fadirejanebebi.epizy.com/puwobimelikotisomi.pdfIn PDF document text
    • http://kiroxivox.epizy.com/2015_kennedy_center_honors_aretha_franklin_performance.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_off0000edb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB3 5096 bytes
SHA-256: 5dbfa18702883014c832c35b723ce0462bc075898b22fc1bd0dd3b26e8249470
font_01_sfnt_off0000ff42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF42 10732 bytes
SHA-256: d103ee0fa1f302b611031c86cd3d9aa244d8bb71e9b0b8eca2f8a501bbabfa1a