Malicious PDF — malware analysis report

Static analysis result for SHA-256 4884a4774d6bad90…

MALICIOUS

PDF

79.2 KB Created: 2021-02-06 20:17:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 49d1e7001ba3d0b2cd6be8f2bdf100ef SHA-1: 95d52c156ffa072b897aa15000d653b7596b9751 SHA-256: 4884a4774d6bad9062b9d2893446c2ca11ef6359d9498dc32977875bd6abb453
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://leonvi.ru/123?utm_term=teacup+french+bulldog+puppies+for+sale+cheap PDF link annotation
    • https://cdn.sqhk.co/niporatibu/Lgd1Rhi/tower_defense_simulator_bunny_skins.pdfIn PDF document text
    • https://cdn.sqhk.co/nemuvefik/ikN24Pb/new_offline_rpg_games_for_android_2020.pdfIn PDF document text
    • http://requiremcgood.com/business_management_dictionary_app670fe.pdfIn PDF document text
    • https://cdn.sqhk.co/mifigatira/Pjcwje0/zakopojonapatadidoludetel.pdfIn PDF document text
    • https://mepodatadun.weebly.com/uploads/1/3/1/4/131452799/linitaritu.pdfIn PDF document text
    • http://euromarket.pro/soul_hunters_wiki9o9z2.pdfIn PDF document text
    • http://virona.org/kuvowerogiroreverx99a9.pdfIn PDF document text
    • http://azules.ru/50060643524fwumx.pdfIn PDF document text
    • https://fixasamajiwige.weebly.com/uploads/1/3/4/3/134318971/tovojodo.pdfIn PDF document text
    • http://storeplus.info/self_shuddering_definitionueb4o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gesesasogibigaw.rf.gd/reference_online_article_apa_format.pdfIn PDF document text
    • http://ruxemad.epizy.com/sovaweja.pdfIn PDF document text
    • http://kesaratesur.epizy.com/birth_horoscope_in_tamil.pdfIn PDF document text
    • http://bosirizowu.rf.gd/32801540734.pdfIn PDF document text
    • http://sonasekofuxix.rf.gd/lowakujefil.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/fire_prevention_week_2019_printable_worksheets.pdfIn PDF document text
    • http://fevepapowiwed.epizy.com/simeti.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/heroes_of_the_storm_genji_guide_deutsch.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_off0000f8ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8ED 5504 bytes
SHA-256: 5c7a60537ea018c3f74154f3271aee3a2ba8e03f33423101b4ad9884a054a5d6
font_01_sfnt_off00010b96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B96 10852 bytes
SHA-256: 784485e7d8ae679b7a1c42e3c13e6386a23b897c91ce52b7fd6ceeeb154e4ab9