Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5468c122e75166d…

MALICIOUS

PDF

72.9 KB Created: 2021-03-01 11:11:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: de77164ecf70bdbe9f52aa8740192150 SHA-1: dfefb2a4163d9ec9236295fd228cfef1af9bc530 SHA-256: d5468c122e75166d191b4112cb15dbab26d7f1e7b45ae7995f33a2ec3fdc7cdd
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://midufefew.ru/award?keyword=steal+this+book+barnes+and+noble PDF link annotation
    • http://lakcherie.ru/rosiselixalezenawt3ldu.pdfIn PDF document text
    • https://cdn.sqhk.co/kupawusel/ihIMggj/16960300818.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422918/normal_60029a3554450.pdfIn PDF document text
    • http://grinallex.shop/how_to_do_due_diligence_on_a_company7bjbf.pdfIn PDF document text
    • http://microbladingcertificationdfw.org/advertisement_format_cbse_class_12344um.pdfIn PDF document text
    • https://delazodudiz.weebly.com/uploads/1/3/4/5/134591817/riwesa_sitotumelur_torapawem_vinawanez.pdfIn PDF document text
    • https://kuwomodelinero.weebly.com/uploads/1/3/0/7/130776449/4df8fa4e261.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/Qhghgii/zelosotobezazokibukot.pdfIn PDF document text
    • http://vnds-super.space/66102262245a9b9m.pdfIn PDF document text
    • https://cdn.sqhk.co/wowixepis/FNBOxig/escaping_the_prison_henry_stickmin_collection.pdfIn PDF document text
    • http://siwarezowagi.iblogger.org/laxamakerivatezutoduva.pdfIn PDF document text
    • https://xibatelilon.weebly.com/uploads/1/3/1/6/131637149/nigemutid.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tutalogivenerok.epizy.com/free_spaghetti_dinner_fundraiser_flyer_template.pdfIn PDF document text
    • http://xojabujujipeze.rf.gd/puteda.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/67848097519.pdfIn PDF document text
    • https://s3.amazonaws.com/lemerisinivum/beautiful_trauma_album_pink.pdfIn PDF document text
    • https://s3.amazonaws.com/bubisifapagefe/man_u_fc_bleacher_report_football.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_off0000e0aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AA 5220 bytes
SHA-256: 698a4c4be9483867f93e25669365c0ad99952f90f6d7b4eeff69de414938b269
font_01_sfnt_off0000f259.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF259 10504 bytes
SHA-256: d74fe686d6990da94d1cd803f69b2e13be2d7702a9f3ff879ef9590925b9b604