Malicious PDF — malware analysis report

Static analysis result for SHA-256 95006e32ea1ecb6a…

MALICIOUS

PDF

71.0 KB Created: 2021-10-01 06:57:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 879cb07c3e2921009104ca685d4023f3 SHA-1: 089a3333b8da8fcfb403f14493d9265760f6bd74 SHA-256: 95006e32ea1ecb6aca215348db36b5dc9b4c7f0793e3156458b0725d97d95c5e
134 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, and it contains embedded JavaScript. The presence of numerous external URIs, many pointing to link farms on disposable hosting, strongly suggests a phishing or malware distribution attempt. The embedded JavaScript likely facilitates the redirection or download of malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 6

  • 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.
  • 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 https://garglob.ru/uplcv?utm_term=hush+hush+pdf+english PDF link annotation
    • https://sk-elektron.ru/ckfinder/userfiles/files/lemukixesabokazama.pdfIn PDF document text
    • http://mexvp.com/ckfinder/userfiles/files/buzuwomozebavexibiwefiw.pdfIn PDF document text
    • http://bsa-billiard.by/images_from_html_editor/file/88766117198.pdfIn PDF document text
    • http://tmkb.org.tr/ckfinder/userfiles/files/mosaneperixemedopuf.pdfIn PDF document text
    • http://pathtojanna.com/userfiles/files/wapuvum.pdfIn PDF document text
    • https://qualityroofinnandsuites.com/nbloom/fckuploads/file/43471298210.pdfIn PDF document text
    • http://ux02.wadhost.com/js/ckfinder/userfiles/files/pixotibuduxubomaxosapag.pdfIn PDF document text
    • https://hainutedecopii.eu/ckfinder/userfiles/files/65406031232.pdfIn PDF document text
    • http://uitetenindex.nl/images/uploads/55413852868.pdfIn PDF document text
    • http://e-baze.lv/images/site/file/guxup.pdfIn PDF document text
    • https://onecre.com/images/content/files/28134896938.pdfIn PDF document text
    • http://idevicesplus.nl/app/webroot/files/userfiles/files/1613979291.pdfIn PDF document text
    • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613041afb723e---73524445802.pdfIn PDF document text
    • https://podiummagazinenews.com/ckfinder/userfiles/files/wuzazubaz.pdfIn PDF document text
    • http://duonglaohanoi.com/userfiles/file/52646086348.pdfIn PDF document text
    • http://tidomusica.com/uploads/files/202109301831523227.pdfIn PDF document text
    • http://creaorganization.com/depo/sayfaresim/file/77474853901.pdfIn PDF document text
    • http://elmbbq.com/uploads/files/jipilep.pdfIn PDF document text
    • http://aumnat2car.com/ckfinder/core/connector/php/upload/files/93127480494.pdfIn PDF document text
    • https://jesssmithtri.com/jesssmith/ckfinder/userfiles/files/tasudilusobakexu.pdfIn PDF document text
    • http://deaprogettazioni.it/userfiles/files/45864870559.pdfIn PDF document text
    • https://giverny-bkk.com/upload/files/4226085653.pdfIn PDF document text
    • https://eqonetech.com/upload/userfiles/files/48714648100.pdfIn PDF document text
    • http://dharkaninternational.com/survey/userfiles/files/19911694822.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_off0000b167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB167 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c97e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC97E 10388 bytes
SHA-256: aaebe020575273e43bc24a83ca6d4356d043db9103a2f8a6e53165543b160385
font_02_sfnt_off0000e094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE094 17960 bytes
SHA-256: 93ad4d9adc4e6262a4819746b039597fcceced10333d446326242cf96d1f2f4f

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