Malicious PDF — malware analysis report

Static analysis result for SHA-256 a884434c2fae18ef…

MALICIOUS

PDF

72.0 KB Created: 2021-02-28 04:10:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 65ce69e0c117f38c50d62c87ce0e80eb SHA-1: 3aece3353143492501a79830e4ae6cf97136ada4 SHA-256: a884434c2fae18efef66bc540dafb8dd311fb66c657b9a29208c78a48f95418c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://pelibifir.ru/wix?keyword=fromm+four+star+feeding+guide PDF link annotation
    • http://jawazapefaxuzit.mywebcommunity.org/kixetupatemebapenikuja.pdfIn PDF document text
    • https://xexonukomamub.weebly.com/uploads/1/3/4/3/134353621/fivabakapukudotek.pdfIn PDF document text
    • http://meetchambre.xyz/suwetafinevidumuwitigunippnuef.pdfIn PDF document text
    • http://zevewidojodot.mywebcommunity.org/43153095967.pdfIn PDF document text
    • http://prizinsta.info/2006_chevy_equinox_heater_core_recallijflo.pdfIn PDF document text
    • http://snt-br.ru/words_that_start_with_colcp8dn.pdfIn PDF document text
    • http://dapurixid.sportsontheweb.net/61577784995.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/how_much_does_a_diesel_mechanic_make_a_year_in_canada.pdfIn PDF document text
    • http://sawemawe.mywebcommunity.org/sofelububejomexasuzakiwe.pdfIn PDF document text
    • https://bodumiwi.weebly.com/uploads/1/3/1/4/131406735/9736112.pdfIn PDF document text
    • http://samo-katim.ru/kovanefidobusonagisosunfp4za.pdfIn PDF document text
    • https://pirizujimo.weebly.com/uploads/1/3/4/4/134454944/laraj_xogiduzopefuxoz_jawif.pdfIn PDF document text
    • http://subfamjtii.site/arabic_language_bookssjvzl.pdfIn PDF document text
    • http://bonus332.site/97575374207a631v.pdfIn PDF document text
    • http://amaryllis.space/zukibajazulifimawibogipqvge4.pdfIn PDF document text
    • http://mebelintera.ru/ziglar_self_talk_cardsa9uyd.pdfIn PDF document text
    • http://ptmonline.ru/aircraft_accident_investigation_reportge3oi.pdfIn PDF document text
    • http://parrrtner.xyz/7532964654nk55f.pdfIn PDF document text
    • https://gujijuxe.weebly.com/uploads/1/3/5/3/135326775/vuwedas.pdfIn PDF document text
    • http://luxshop21.site/4108245362324flw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vujuvisesakok.myartsonline.com/44764982949.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_off0000de31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE31 5148 bytes
SHA-256: 0ef3fd1aa3a8fe0dd3128bd8bbb502d6c0acd14e1b98fc4dbbde8e47a77745c0
font_01_sfnt_off0000efa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA2 10116 bytes
SHA-256: e8d9be63e2a5a4ca2307447d27919c9298b58c10c9c3b0148b40cfbd1561780f