Malicious PDF — malware analysis report

Static analysis result for SHA-256 e00e5bbd62120a4e…

MALICIOUS

PDF

70.7 KB Created: 2021-09-26 23:02:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: c6ebb426038cd52d06901dc1177808e3 SHA-1: 5590ac524389bfa0b97bc3a07ec56bf6fd0ba038 SHA-256: e00e5bbd62120a4e3022e383a99551ad011f46f4e926eb156cf8bd6e717dc2d0
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, many pointing to suspicious domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. The presence of embedded JavaScript suggests an attempt to exploit vulnerabilities or execute malicious code within the PDF viewer.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://hutbephottaihaiphong24h.com/upload/files/palatibirodonuwabosutele.pdf In PDF document text
    • http://studioarclab.eu/userfiles/files/retotivuned.pdfIn PDF document text
    • https://dallaslandscapedesign.com/media/files/1077721534.pdfIn PDF document text
    • http://varadimasszazs.hu/uploads/files/degelezasojerofagemodiwet.pdfIn PDF document text
    • https://zzhqhi.com/d/files/18882862176.pdfIn PDF document text
    • http://lactopad.com/uploads/files/85487480145.pdfIn PDF document text
    • http://oreade-breche.fr/userfiles/file/muwixoloji.pdfIn PDF document text
    • http://uralcomservis.ru/crn_fls/crn_files/jonuzetikupi.pdfIn PDF document text
    • http://www.parinet.fi/tiedostot/files/46409515370.pdfIn PDF document text
    • https://cornerstonelaw.eu/userfiles/file/kogajigebopozeliwagek.pdfIn PDF document text
    • http://arci-mp.fr/admin/File/levudorofokonidibinow.pdfIn PDF document text
    • http://minhphucvietnam.com/uploads/userfiles/file/nezuxanasagonodarowesiluz.pdfIn PDF document text
    • http://syntra.pl/userfiles/file/dodusajekot.pdfIn PDF document text
    • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614572083ecd6---76507718674.pdfIn PDF document text
    • http://thegrcinstitute.org/app/webroot/js/ckfinder/userfiles/files/98529168731.pdfIn PDF document text
    • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/69fbqprjinstb8b7t01r9sviqf/63822064811.pdfIn PDF document text
    • http://jfe.hk/userfiles/3781752862.pdfIn PDF document text
    • https://krygina40.ru/UserFiles/File/34409635117.pdfIn PDF document text
    • http://medob.org/SITE/files/editor/file/limixawerevupifogibofa.pdfIn PDF document text
    • http://mrpokedb.com/uploads/files/paruripekovegoxe.pdfIn PDF document text
    • http://vikohasanfiber.com/upload/files/waxenisunekax.pdfIn PDF document text
    • http://giustizianuova.it/userfiles/file/vefafebeperu.pdfIn PDF document text
    • http://leinerpakgelatine.com/survey/userfiles/files/ranozovipasadog.pdfIn PDF document text
    • https://noriupapildu.lt/ckfinder/userfiles/files/40978854432.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=what+is+an+apn+on+a+phonePDF 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 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_off0000b2e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2E8 10196 bytes
SHA-256: 5b40a3243e080a5bb1f694979f624dc95e9cbed79790afbf5ede065883acfbe3
font_01_sfnt_off0000c9c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9C1 16628 bytes
SHA-256: 12e939b47f55d21eba832dd9877c24d0ada64f5fb32528a93dde71188a5b93ae
font_02_sfnt_off0000f4b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.