Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ed545f32d9f52c3…

MALICIOUS

PDF

68.7 KB Created: 2021-02-07 20:59:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 055acadb4c45a99768c40234b6b36e0f SHA-1: 22134e3315dff2bf4d7e05d1abb3e926794db3b7 SHA-256: 1ed545f32d9f52c304e9908972196a6339c8825f69717f4ce3a3877fd6951003
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/aws?utm_term=major+general+song+piano+sheet+music PDF link annotation
    • http://miiliioner.xyz/somewhere_over_the_rainbow_piano_shecty8j.pdfIn PDF document text
    • http://cmbespaceclient.xyz/types_of_malicious_code0tmr4.pdfIn PDF document text
    • http://kamini33.ru/plant_based_whole_food_dietx3h3i.pdfIn PDF document text
    • http://dadosib.22web.org/31084069635.pdfIn PDF document text
    • http://winoraama.site/baby_bumblebee_nursery_rhyme_lyricsol5qg.pdfIn PDF document text
    • http://zoom-omsk.ru/36043368299a3y1m.pdfIn PDF document text
    • http://supermagazforsale1.xyz/zivowosk5pl.pdfIn PDF document text
    • http://vatosake.iblogger.org/88728303052.pdfIn PDF document text
    • http://okrasote.info/zone_8b_fall_planting_guidenf210.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lapobikajedive.rf.gd/analise_combinatoria_questoes_resolvidas.pdfIn PDF document text
    • http://tuwofexuguxu.epizy.com/ac_maintenance_service_report_format.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/76757229136.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/heckmondwike_grammar_school_sixth_form_entry_requirements.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/fumikikuvamasovilarexodi.pdfIn PDF document text
    • http://nibedob.rf.gd/aflatoon_movie_full_hd.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_off0000ced6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED6 5428 bytes
SHA-256: 8392c2740c054662e327d9fe53ab27f207c249705562ed3c94d185e592ac6958
font_01_sfnt_off0000e13a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13A 10704 bytes
SHA-256: 6ed7ea25e98eff412b2ab65b3944c4583d89467af84b8263cf67cf565e2a66b2