Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ce8ac4bc2dcc7d…

MALICIOUS

PDF

72.9 KB Created: 2021-03-05 04:07:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0595edddd83dd77d6f9bb6f20d8e5c26 SHA-1: 4258199a409e177a037afde4971d6e34163e17d8 SHA-256: d3ce8ac4bc2dcc7dafac651253f36ec5b51a79d1815898747bd0df07fb0b6a52
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://lozipotod.ru/award?keyword=download+driver+brother+hl-2140+for+windows+xp PDF link annotation
    • https://tunimesepet.weebly.com/uploads/1/3/1/4/131455680/6471910.pdfIn PDF document text
    • https://dubobovutorikug.weebly.com/uploads/1/3/5/3/135332124/1499314.pdfIn PDF document text
    • http://kulupitodawiri.iblogger.org/82244433586.pdfIn PDF document text
    • https://sexitikimuzulab.weebly.com/uploads/1/3/5/2/135296232/4b27065481.pdfIn PDF document text
    • https://nepuvojikonutoz.weebly.com/uploads/1/3/4/6/134677469/woronok.pdfIn PDF document text
    • https://xoregofejaba.weebly.com/uploads/1/3/4/6/134651656/kizulaposilonuraxax.pdfIn PDF document text
    • http://tajumizigareni.iblogger.org/labview_core_1.pdfIn PDF document text
    • https://kaxufuramizoval.weebly.com/uploads/1/3/5/3/135387701/8320419.pdfIn PDF document text
    • http://zatuludarapix.iblogger.org/service_manager_job_description_resume.pdfIn PDF document text
    • https://kosukanawator.weebly.com/uploads/1/3/5/3/135304621/7893803.pdfIn PDF document text
    • https://goponubinolofuv.weebly.com/uploads/1/3/4/6/134695307/34a07b36ab07.pdfIn PDF document text
    • https://jiviwakabukowe.weebly.com/uploads/1/3/4/0/134096071/tumejugofubezojukutu.pdfIn PDF document text
    • http://naxiramomamaz.66ghz.com/4485506249.pdfIn PDF document text
    • http://reborasiruv.iblogger.org/year_9_maths_simultaneous_equations_worksheet.pdfIn PDF document text
    • https://fanedidunosav.weebly.com/uploads/1/3/5/3/135345804/tabuzadubelitozur.pdfIn PDF document text
    • https://gunosevibo.weebly.com/uploads/1/3/4/7/134716368/2797769.pdfIn PDF document text
    • http://savineme.mywebcommunity.org/20999392611.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pejaxuvotovu.rf.gd/cartoon_cow_3d_model_free.pdfIn PDF document text
    • http://takamuwemevofe.epizy.com/wizonexuwa.pdfIn PDF document text
    • http://teluroluxeterez.myartsonline.com/how_to_connect_xp_series_gaming_chair_to_ps4.pdfIn PDF document text
    • http://rupiroliwon.epizy.com/beautiful_sunday_daniel_boone.pdfIn PDF document text
    • http://fazesinu.rf.gd/zilemomopiwokezij.pdfIn PDF document text
    • http://tefinavi.epizy.com/crossword_quiz_answers_movies_level_4.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_off0000deae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAE 5932 bytes
SHA-256: 48d5d36175887381ce70af3f6752def7f7240b157df1a9ac942aa35d1295b159
font_01_sfnt_off0000f308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF308 10184 bytes
SHA-256: 5051b1a9b601c69c21486122e8e987ed549c1ecb237970db68218b3548b45117