Malicious PDF — malware analysis report

Static analysis result for SHA-256 578d9c1dce23b8b2…

MALICIOUS

PDF

65.0 KB Created: 2021-02-21 15:04:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 815dbe50ebf6cc798727166bc3eb47fd SHA-1: 54d36ddbe8a2def92a2299e3e32df32e85cc1e1a SHA-256: 578d9c1dce23b8b2d36020c09319c3f90c913b223f87f4878a4a81a271369293
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=literal+equations+and+dimensional+analysis+worksheet+answers+2-8 PDF link annotation
    • http://geosen.net/bazeligositosiki3dc48.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417213/normal_5fe40793abafe.pdfIn PDF document text
    • http://winokuzovew.iblogger.org/metformin_for_pcos_ovulation.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fatigovonid.rf.gd/who_makes_defiant_motion_security_light.pdfIn PDF document text
    • http://dixurudij.rf.gd/new_england_patriots_injury_report_week_12.pdfIn PDF document text
    • http://nexizali.epizy.com/format_pom._xml_online.pdfIn PDF document text
    • http://jalugegaru.epizy.com/90569269408.pdfIn PDF document text
    • http://kibulirol.rf.gd/78278717788.pdfIn PDF document text
    • http://pebulibupa.rf.gd/xomiwevajomukodosipinus.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/businessman_2_picture.pdfIn PDF document text
    • http://vorawaforase.epizy.com/mepikajo.pdfIn PDF document text
    • http://dajidagetulawu.epizy.com/loduxovi.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/tekonukalo.pdfIn PDF document text
    • http://vazefetapo.rf.gd/banjaran_film_ke_gane_video.pdfIn PDF document text
    • http://rovututuxopi.epizy.com/arakshaka_gatha.pdfIn PDF document text
    • http://gamutazuzores.epizy.com/fright_night_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/under_dampened_arterial_line_waveform.pdfIn PDF document text
    • http://ligagenaragad.rf.gd/xajolilibudugosenag.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/56489079796.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_off0000c0c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0C5 5748 bytes
SHA-256: 0752bf7c57a78bfc80a5e725a7ced816608fc5be56d8b7be5425313401baf976
font_01_sfnt_off0000d449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD449 9940 bytes
SHA-256: c79c5d254fd1ff012cb7369aa5453221273f6a7da121514f579aa89db58b2f1b