Malicious PDF — malware analysis report

Static analysis result for SHA-256 17a80ccc59cb3f1e…

MALICIOUS

PDF

83.2 KB Created: 2021-09-12 23:06:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: a47267e91aa391d33fac022f0313a4e4 SHA-1: ad320294096a857b49fafa4f7a5a291c76c6fd97 SHA-256: 17a80ccc59cb3f1e57395c0eeba2f266d2506423afb0016583272002cf7b3df5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nomylo.ru/uplcv?utm_term=how+to+hack+someones+snapchat+account PDF link annotation
    • https://kovtec.pl/eurostyl/photos/file/xebabegonobakovajozobaled.pdfIn PDF document text
    • http://www.coverseg.com/uploads/ckfinder/files/5647481835.pdfIn PDF document text
    • http://jinistudy.com/_UploadFile/Images/file/6489150691.pdfIn PDF document text
    • http://myphamnanyno.com/luutru/files/97845710044.pdfIn PDF document text
    • https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/02d6577b2a7d70357bddd16ec37ddf1c/tojuzizoluxusekokalaf.pdfIn PDF document text
    • https://cicasoftavukatwebsitesi.demowebsiteleri.com/upload/files/87252063071.pdfIn PDF document text
    • http://www.ks-klinika.ru/ckfinder/userfiles/files/34695652288.pdfIn PDF document text
    • https://kurtoglumob.com/upload/file/48866989937.pdfIn PDF document text
    • http://okeefesreef.com/ckfinder/userfiles/files/mimosugivi.pdfIn PDF document text
    • https://keralahappyjourney.com/ckfinder/userfiles/files/xitodukojagaseveku.pdfIn PDF document text
    • http://orchid-daikanyama.com/userfiles/file/93086689094.pdfIn PDF document text
    • http://av72-reklama.ru/userfiles/file/163110185606b0cd2e50c352a8a8a4.pdfIn PDF document text
    • https://hram-uspeniya.ru/ckfinder/userfiles/files/nalivawizefa.pdfIn PDF document text
    • http://dogomanhnghia.com/uploads/files/turalorukikifusezujog.pdfIn PDF document text
    • http://hoteldarim.ir/basefile/hoteldarimir/files/55200172350.pdfIn PDF document text
    • https://robert-zauer.cz/userfiles/file/guwobogizadaxenidemaluk.pdfIn PDF document text
    • http://dailyxedayhang.com/userfiles/files/78232883946.pdfIn PDF document text
    • https://crownprolaw.cn/userfiles/Proj_Name/files/29856965052.pdfIn PDF document text
    • http://whatifitspossible.com/ckfinder/userfiles/files/ruxefanozepudunere.pdfIn PDF document text
    • http://rosesrealtyhomes.com/userfiles/files/97632179290.pdfIn PDF document text
    • http://enricobarraco.com/files/letiwiwamabegemaf.pdfIn PDF document text
    • http://domki-kopalino.pl/pliki/49612286382.pdfIn PDF document text
    • http://ivankotov.ru/img/lib/file/zeguposo.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613d7fd0283b5---34776930472.pdfIn PDF document text
    • http://hycxchina.com/filespath/files/20210908121205.pdfIn PDF document text
    • https://rowadalbyt.com/userfiles/files/migapiraduko.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBCB 19560 bytes
SHA-256: a926a3ec371b9a46c144c8a14cc6002c9833de829a7bd053b64e641fb1a85be5
font_01_sfnt_off00010e7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E7E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12695 10672 bytes
SHA-256: e93713fec1c5036d3f5ecbb9aba73572a54cf3c4a723c732443f24c5fdca62a9

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