Malicious PDF — malware analysis report

Static analysis result for SHA-256 f116343b3b84da9e…

MALICIOUS

PDF

69.6 KB Created: 2021-01-27 02:16:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6759ea04a021c5aa81017b3d0db149b4 SHA-1: 8ced7a050d73c65577d5f74048e5cf2eebcd2f97 SHA-256: f116343b3b84da9ef589003e33ef7e5499921906e8a843f65b4758fd56f306e8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://druttle.ru/wb?keyword=t%20mobile%20customer%20service%20chat%20usa PDF link annotation
    • http://sijazoge.iblogger.org/assets_and_liabilities_management_project_report.pdfIn PDF document text
    • http://bloodcraft.online/sorufitojoxys51t.pdfIn PDF document text
    • http://thelandofbadideas.com/are_brain_training_programs_effective4nalp.pdfIn PDF document text
    • http://ig-soft-team.com/car_driving_simulator_sf_apk_modg0hdm.pdfIn PDF document text
    • http://kafologegodudo.iblogger.org/63523859557.pdfIn PDF document text
    • http://jobopenufa.iblogger.org/management_reporter_2012_cu16_system_requirements.pdfIn PDF document text
    • https://cdn.sqhk.co/disonixures/1ibgiia/red_boy_pizza_larkspur_coupon.pdfIn PDF document text
    • http://xamagexezuloku.iblogger.org/telir.pdfIn PDF document text
    • http://drive4mclaneaustell.com/doodle_rocket_gameevrfa.pdfIn PDF document text
    • http://dwatches.site/pcb_light_ballast_disposal1hixp.pdfIn PDF document text
    • https://cdn.sqhk.co/zunesunatiri/R1ia0ii/phage-_displayed_combinatorial_peptide_libraries.pdfIn PDF document text
    • https://cdn.sqhk.co/sifajoxojif/bKlwjda/morarolebase.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zaximibirada.epizy.com/jalsha_movies_2019_hollywood.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/aetna_medicare_replacement_provider_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lemefofutomapox/hyperlink_trong_google_sheet.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_off0000d192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD192 5188 bytes
SHA-256: f14303b8268a840eb0033c8a77da2a1dd202dfcf043bb85a6d0facebff2dac13
font_01_sfnt_off0000e30f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE30F 11360 bytes
SHA-256: 23cdc58465918a8eaa2e5f00cdab8510d07e7b685043bbfec6838f24038f1e1c