Malicious PDF — malware analysis report

Static analysis result for SHA-256 549406ce4c71e20f…

MALICIOUS

PDF

65.6 KB Created: 2021-09-17 22:43:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-27
MD5: 1ec0465f570284f3ffd157cc467a1ddf SHA-1: c085d169a6191c9db816758c676e2e6843c905f1 SHA-256: 549406ce4c71e20f815a589761c474394ecc0fac2e6b2f35e3af2ba4c412dd16
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a high number of external URIs, many of which are hosted on disposable domains and appear to be part of a link farm. The embedded JavaScript and the numerous links suggest the document is designed to redirect users to potentially malicious sites, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6906

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.
  • 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
  • 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://pixomot.ru/uplcv?utm_term=mp4moviez+download+website PDF link annotation
    • http://mariekevanvlierden.nl/survey/userfiles/files/83654201724.pdfIn PDF document text
    • https://kudamatsu.org/userfiles/file/28264915227.pdfIn PDF document text
    • http://honderhotel.com/UploadFiles/FCKeditor/20210906073417.pdfIn PDF document text
    • http://villalapinetafavignana.it/userfiles/files/32861243409.pdfIn PDF document text
    • http://baracenter.be/userfiles/file/kegilavimikadi.pdfIn PDF document text
    • http://girlstown.org/files/js/ckfinder/userfiles/files/razaj.pdfIn PDF document text
    • https://lemarko.com/userfiles/file/kugezozadipavaneseb.pdfIn PDF document text
    • http://matras-devison.ru/upload/file/27019175950.pdfIn PDF document text
    • http://sinostandards.net/upload/files/73680086174.pdfIn PDF document text
    • https://ferest.ro/imagini_ws/sukuzasavopugakuwapowew.pdfIn PDF document text
    • http://xn----itbbfrdrdbd4bgy6gi.xn--p1ai/webroot/files/files/99980104333.pdfIn PDF document text
    • https://motoquadro.de/userfiles/file/pebadogejosimob.pdfIn PDF document text
    • https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/a23dd73b18cf4931fc1865a90b1decef/sotupujuxuf.pdfIn PDF document text
    • https://trouver-une-ssii.com/img/pics/files/zotaniseloveziferu.pdfIn PDF document text
    • https://dichvuketoanvn.org/uploads/files/velujeduletejoxotiwop.pdfIn PDF document text
    • http://pneusmarene.it/images/file/bodowap.pdfIn PDF document text
    • https://ww150001.linebot.net/upfile/files/20210914152336.pdfIn PDF document text
    • http://simsvizag.com/contentimages/file/lazupopenufoguforubi.pdfIn PDF document text
    • https://searchlink.org/userfiles/file/bekixu.pdfIn PDF document text
    • https://korankertas.com/contents/files/93805887308.pdfIn PDF document text
    • https://homestayhoian.thamtuddt.com/uploads/image/files/mezeti.pdfIn PDF document text
    • http://mansiya.com/uploadfile/files/pixuxejexewixalolad.pdfIn PDF document text
    • http://anipetkingdom.com/webroot/img/files/nanirorazetuso.pdfIn PDF document text
    • http://kesherisrael.com/uploadEditor/files/nuwafesopigesibiwaz.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d12e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD12E 17796 bytes
SHA-256: 17f7f4d7e290c1805297de6833a9aa2d68691d99c287fe3c164aea864612b009

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