Malicious PDF — malware analysis report

Static analysis result for SHA-256 460804abc4840f8f…

MALICIOUS

PDF

71.1 KB Created: 2021-02-15 09:32:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4a2fc01d59ead21085c27a516484d6cf SHA-1: 92a27c76f85842bc4f9fa0f3c6bd41b58736f6c4 SHA-256: 460804abc4840f8f756c4c4fbff32ef46a0dbac457f40c4a04fce31060cf7abd
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://seumenha.ru/123?utm_term=area+of+a+sector+of+a+circle+practice+problems PDF link annotation
    • http://jebewif.22web.org/44333237760.pdfIn PDF document text
    • http://tovelksa.website/after_effect_cs6_portableyi2z9.pdfIn PDF document text
    • https://viwifigejemi.weebly.com/uploads/1/3/0/8/130814408/votomul_tibalozot_bexeral.pdfIn PDF document text
    • https://vanazufir.weebly.com/uploads/1/3/2/7/132740694/jefokopu.pdfIn PDF document text
    • http://pumutug.iblogger.org/crystal_report_9._0_runtime.pdfIn PDF document text
    • http://larts.digital/video_editor_software_for_android_mobileyx5hl.pdfIn PDF document text
    • https://zuduberojep.weebly.com/uploads/1/3/1/3/131398404/c400457f31b5.pdfIn PDF document text
    • http://doctora.club/sales_agent_contracti5apx.pdfIn PDF document text
    • http://teagreen.space/51063661598me85w.pdfIn PDF document text
    • http://leree6.club/6804056009326jkl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://konewumabujak.rf.gd/biogeography_book.pdfIn PDF document text
    • https://s3.amazonaws.com/laginekux/barcode_128_generator_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/52890630829.pdfIn PDF document text
    • http://dimogotewebi.epizy.com/bleacher_report_nfl_picks_week_6_2019.pdfIn PDF document text
    • http://fonumorawupako.epizy.com/aerobed_comfort_lock_queen_air_mattress_manual.pdfIn PDF document text
    • http://lotitivixuji.rf.gd/17939977848.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/solid_waste_management_audit_report.pdfIn PDF document text
    • http://zenujasope.epizy.com/79147865931.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_off0000d8eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8EB 5288 bytes
SHA-256: 1d6787c7e2648ed93fee295ce73350ae50431bd7840961c2ca9958fddb67f90a
font_01_sfnt_off0000ead4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD4 10556 bytes
SHA-256: 74a4387561e92755784b09f9b76ebb4364fe8b1370ba9d6e72071c255b7c4619