Malicious PDF — malware analysis report

Static analysis result for SHA-256 783d718ea2e8500c…

MALICIOUS

PDF

65.3 KB Created: 2021-01-28 00:06:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f23af3085923503150a325c92f1fb4e6 SHA-1: 101f3b474690f38e8a75d65dff3e3959b4cda5ca SHA-256: 783d718ea2e8500c93735e524daeaf0133bf75b6417ea90eea2c3db481ab76e3
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://druttle.ru/aws?utm_term=aha+guidelines+valvular+heart+disease+2006 PDF link annotation
    • http://everydayy.fun/lawugafixoozz8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375694/normal_5fd685b347c79.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459318/normal_5fc911af94410.pdfIn PDF document text
    • https://gimiduti.weebly.com/uploads/1/3/4/7/134711596/nikojififami.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485696/normal_60030c8cb0c09.pdfIn PDF document text
    • http://jopkapopka.online/raja_rani_sad_ringtones_download_teluguqwjis.pdfIn PDF document text
    • https://cdn.sqhk.co/sezunofubuzi/2SgjhiG/slot_car_racing_buffalo_grove.pdfIn PDF document text
    • http://fortysgjdk.fun/forrester_wave_insight_platforms-_as-_a-_service8ujs5.pdfIn PDF document text
    • https://ledajesaler.weebly.com/uploads/1/3/4/0/134041179/e6e28687513.pdfIn PDF document text
    • https://teveluzisobe.weebly.com/uploads/1/3/5/2/135299025/toruponikolabugateke.pdfIn PDF document text
    • http://christinaanddavid2019.com/original_meaning_of_pifflerhn4k.pdfIn PDF document text
    • https://zinaxavum.weebly.com/uploads/1/3/4/3/134354277/nawaz-muxepefijuxide-jigaz-fajaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/detect_language_app.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/bigitenigijixumupa.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/battlefield_2_bad_company_pcz.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_off0000c371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC371 5564 bytes
SHA-256: d26c162b4ffffa7ab81eeef490c85fb6d389287378528b7cfdb0b5069f7ff5ac
font_01_sfnt_off0000d65d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD65D 9940 bytes
SHA-256: 12787ebfa48f20b322b102e4cdae72849f2e1c1ce1cb1ec96165b82f5873b4a2