Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 662dc82864ea17c8…

MALICIOUS

PDF / .VIR

82.3 KB Created: 2021-10-11 13:52:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2024-07-13
MD5: a1ff0e73c6f4de18b1090109eae32640 SHA-1: 03753aa439641facd3eacbfda11012cfa075f1de SHA-256: 662dc82864ea17c874fefb3bac79452d46e890fa092e107fe9ed3246e31d2e17
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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 http://nhakhoasaigonkimcuong.com/uploads/images/files/jebupovakopizovizotuk.pdf In PDF document text
    • http://stepasidemedical.ie/images/uploads/file/towopez.pdfIn PDF document text
    • http://megaprestige.ru/uploads/files/kulufitoguk.pdfIn PDF document text
    • http://cabini.it/userfiles/files/rulurexukedimukexulil.pdfIn PDF document text
    • http://www.plain-pied.com/editeur/ckfinder/userfiles/files/10806634533.pdfIn PDF document text
    • http://s13cf5ef.alojamientovirtual.com/ropadefutbolbarata/userfiles/file/wosiwabesavisexenabud.pdfIn PDF document text
    • http://paraleumarian.ro/app/webroot/files/userfiles/files/96113422179.pdfIn PDF document text
    • http://mastera-mix.ru/ckfinder/userfiles/files/56603606112.pdfIn PDF document text
    • http://hengtaixin.com/HangShun/ckfinder/userfiles/files/6558291602.pdfIn PDF document text
    • http://factorycontrolprojects.com/userfiles/file/87156041444.pdfIn PDF document text
    • http://vntattoosupply.net/uploads/image/files/jixesimem.pdfIn PDF document text
    • http://rszm88.com/upfolder/e/files/20211007030112.pdfIn PDF document text
    • https://eastmangroupllc.net/ckfinder/userfiles/files/19923474668.pdfIn PDF document text
    • https://www.l-games.jp/js/ckfinder/userfiles/files/82333699644.pdfIn PDF document text
    • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614677142df65---80427725289.pdfIn PDF document text
    • https://archicakedesign.com/upload/file/99970539024.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/81e74528303545d170ae2e75332b0c52/gelipigubikexiwenopugus.pdfIn PDF document text
    • https://instalacje-elektryczne.net/ckfinder/userfiles/files/bakanenebajosepogofobuf.pdfIn PDF document text
    • http://xn--aknmedcal-wpbe.com/uploads/file/kaboz.pdfIn PDF document text
    • http://elai.kz/upload/2021/09files/2109181123230496840flic.pdfIn PDF document text
    • http://shannonlakeestates.org/fck_images/file/61063200095.pdfIn PDF document text
    • https://marblo.com/app/webroot/img/files/54452063887.pdfIn PDF document text
    • http://cesishotel.com/res/wysiwyg/file/60277380812.pdfIn PDF document text
    • https://matharu.ae/userfiles/file/gajisu.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/jibuz.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/EqozwcbAC44/uplcv?utm_term=your+cup+of+cakePDF link annotation
    • 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 extracted file (font_00_sfnt_off0000d9f7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d9f7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d9f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF209 19580 bytes
SHA-256: 2f740f08862ecb206ee6f0246c69459aa62a5b852d720c3a9f6d28cfc0bb8731
font_02_sfnt_off000124c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124C8 10140 bytes
SHA-256: 3a4b0f8adb0ec4cfcc83f8312d2fbeebde8e17e75d872fd3168aecf8a317abd0