Malicious PDF — malware analysis report

Static analysis result for SHA-256 f01c652e766057c4…

MALICIOUS

PDF

66.5 KB Created: 2021-01-30 00:04:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: fec3fc8bd656d8d1df10e955f89a8faa SHA-1: 64267d51c6f70ce103669f34beffb05a876e36fe SHA-256: f01c652e766057c4074ae65b49e26be772122b2f10adca4a57b4a33c6cd1936c
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://jacksth.ru/shook?utm_term=swiss+ice+hockey+cup+auslosung PDF link annotation
    • http://grampus-shop.com/business_driven_information_systems_3rd_edition_free_download7b455.pdfIn PDF document text
    • https://cdn.sqhk.co/kalijada/R061ENk/ball_into_washing_machine.pdfIn PDF document text
    • http://lidzadva.xyz/tiny_trainer_motorspjod5.pdfIn PDF document text
    • http://xafevak.iblogger.org/word_cookie_answers_special_level.pdfIn PDF document text
    • https://cdn.sqhk.co/poxufape/4iemThh/68808694803.pdfIn PDF document text
    • https://cdn.sqhk.co/wunasesev/aVQiigc/writers_assistant_jobs_los_angeles.pdfIn PDF document text
    • http://govnosiakxws.online/53995881683iwv3.pdfIn PDF document text
    • http://copyrighthelpcentral.com/him_eesh_madaan_video_youtubeqpj7e.pdfIn PDF document text
    • http://micrometerdigital.xyz/crowd_clash_3d_mod_apkb9bto.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/xetasif/mean_and_variance_of_discrete_uniform_distribution.pdfIn PDF document text
    • http://sovizaz.epizy.com/nasafe.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/backup_chat_whatsapp_from_iphone_to_android.pdfIn PDF document text
    • http://memaded.epizy.com/cavernous_malformation_spinal_cord_radiology.pdfIn PDF document text
    • http://moliposapivar.epizy.com/mark_sheet_number_on_ssc_certificate_cbse.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/ferobanefexekisezenol.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_off0000c734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC734 5460 bytes
SHA-256: 47c15b2e39eeb663643451c2358351fa8cfcf2d9ef996aca531c2794e520bcbc
font_01_sfnt_off0000d9e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E3 10820 bytes
SHA-256: ee350bf1ebdc7e1d512bafbc4da8a2b4f276c5ce722aeb91cc001c7b7696fd75