Malicious PDF — malware analysis report

Static analysis result for SHA-256 689c54a6da58ba5a…

MALICIOUS

PDF

63.7 KB Created: 2021-09-08 15:37:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: ece20eb19c275ee38a8bdb34fe0cc725 SHA-1: b94730e6a682aba4279a142b1690630c9b51b98a SHA-256: 689c54a6da58ba5aa11e9d7a9a54f4c1aa891ecec9124202663404c6d04d8196
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is a PDF file flagged by ClamAV as a phishing trojan. It contains numerous external links, including one pointing to a raw IP address, and several that appear to be on compromised CMS uploads. The ML classifier also strongly indicated maliciousness. These factors suggest the PDF's primary purpose is to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8034

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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
  • 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://bagodilovaspark.hu/userfiles/file/56502869885.pdf In PDF document text
    • http://ubytovani-budejovice.cz/picture/vtextu/file/79198484070.pdfIn PDF document text
    • https://tolgyesvolgy.hu/userfiles/file/98871503006.pdfIn PDF document text
    • http://3colorjazz.com/fckeditor/userfiles/image/59000948958.pdfIn PDF document text
    • http://www.morrisjones.co.uk/EditorImages/file/57427897941.pdfIn PDF document text
    • http://xn--b1agjlwjc3g.xn--p1ai/ckfinder/userfiles/files/22542876691.pdfIn PDF document text
    • https://www.scmsgroup.org/ckfinder/userfiles/files/73160810468.pdfIn PDF document text
    • http://at2apigroup3.com/contents/files/90416938325.pdfIn PDF document text
    • http://esllearningbydesign.com/app/webroot/files/file/78960555828.pdfIn PDF document text
    • http://klwas.org/userfiles/images/file/lelekugurala.pdfIn PDF document text
    • http://flapboxes.com/userfiles/files/59931504576.pdfIn PDF document text
    • http://96rangjai.com/userfiles/file/2736258726.pdfIn PDF document text
    • http://studiotecnicoarduini.eu/userfiles/files/sozarebigaxad.pdfIn PDF document text
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e0880efa9e4c6fed5c39296e548808ba/25332797975.pdfIn PDF document text
    • http://markjfox.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/23254740380.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/934c79d16e7d710ca8952a29fd2dff86/90911782952.pdfIn PDF document text
    • https://internationalmedia.com/userfiles/file/kovajogunozopadenerijo.pdfIn PDF document text
    • http://185.33.116.145/~acus01/upload/files/73658726788.pdfPDF link annotation
    • https://sowlindia.com/userfiles/file/54997881377.pdfIn PDF document text
    • https://cosanuesa.com/componentes/editor/ckfinder/userfiles/files/zaxewufu.pdfIn PDF document text
    • https://ever-progress.dacola.com/upload/files/fajiwujaren.pdfIn PDF document text
    • http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131ba5d7e12a---mekufibexopinazuz.pdfIn PDF document text
    • http://ultrabeauty-ff.ru/userfiles/file/1147358251.pdfIn PDF document text
    • https://happycondo.leaddeehub.com/userfiles/files/73580635924.pdfIn PDF document text
    • https://tidaksusah.com/contents/files/38392611677.pdfIn PDF document text
    • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/23a1549d99ea62f15d7198ec83d2ed06/sesukobatotibilazuj.pdfIn PDF document text
    • https://s-serviss.lv/userfiles/file/pusakavivemotaxizijenuj.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=article+on+indecent+dressing+pdfPDF link annotation

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