Malicious PDF — malware analysis report

Static analysis result for SHA-256 5938db1439f35fd4…

MALICIOUS

PDF

72.7 KB Created: 2021-02-27 17:10:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 52fb0bcf48b0c2b412897dd67435cab9 SHA-1: 2bc8a019af540d3b09b21caa1d15dfd5b0a96784 SHA-256: 5938db1439f35fd4831007b9702cf368f67b239e8bef0d49fd4bc14cbaffd28c
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://botokaw.ru/award?keyword=the+pilot+light+on+my+gas+fireplace+is+out PDF link annotation
    • http://viniveba.mywebcommunity.org/22791480036.pdfIn PDF document text
    • http://tulavesew.getenjoyment.net/psychology_books_for_students.pdfIn PDF document text
    • http://vijevejumozugim.sportsontheweb.net/2611068502.pdfIn PDF document text
    • https://bivawufixusu.weebly.com/uploads/1/3/1/4/131453301/meximabotu-mikaw-nazuluwe-gewenogir.pdfIn PDF document text
    • https://renobikedasel.weebly.com/uploads/1/3/4/8/134897329/zezabibi.pdfIn PDF document text
    • http://wosidigelime.iblogger.org/hr_position_interview_questions_and_answers.pdfIn PDF document text
    • http://legendarycraft.ru/widonozevosijoluzadovaxe2b2u3.pdfIn PDF document text
    • http://veruvipavopa.getenjoyment.net/wexusewipibamaxiv.pdfIn PDF document text
    • https://cdn.sqhk.co/dagufiwus/gqYukje/consultar_mi_saldo_telcel_de_plan.pdfIn PDF document text
    • https://cdn.sqhk.co/jilebodetifa/ifOfWge/sefesinowukekivemi.pdfIn PDF document text
    • https://veminimuvaw.weebly.com/uploads/1/3/4/6/134630651/tilosizetif.pdfIn PDF document text
    • https://cdn.sqhk.co/kusasuzona/jh5Iig6/95762880261.pdfIn PDF document text
    • https://sezebotari.weebly.com/uploads/1/3/1/6/131636698/976df85db.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tizaxagarokilop.epizy.com/68545996599.pdfIn PDF document text
    • http://sulorowanutabu.atwebpages.com/electric_circuits_brainpop_quiz_answers.pdfIn PDF document text
    • http://dakafatuvuguviz.atwebpages.com/timakopixiri.pdfIn PDF document text
    • http://kofaxafogi.myartsonline.com/sub_zero_fridge_repair_nyc.pdfIn PDF document text
    • http://wugujub.onlinewebshop.net/11739294246.pdfIn PDF document text
    • http://dogurof.epizy.com/lewajunadelixof.pdfIn PDF document text
    • http://runogonu.epizy.com/how_to_reset_the_lg_sound_bar.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_off0000df1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF1C 5480 bytes
SHA-256: 71ff5a646d9a87e4f6dd5a9571577efee12b92dff46042693d61da5358fea2f6
font_01_sfnt_off0000f1a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A3 10464 bytes
SHA-256: 718fdfe716477e0b4e359ee633dfd04d82974ceeaaa42e53d99683d95c0606b3