Malicious PDF — malware analysis report

Static analysis result for SHA-256 2333bd50c0ba12db…

MALICIOUS

PDF

62.3 KB Created: 2021-07-05 00:43:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 4c8ecc97269c666d6dd61e7bbf9d8036 SHA-1: d43e88561af9ceddd9662e0a1165838d920e49b1 SHA-256: 2333bd50c0ba12db3fd39b9fce8ac3ca4cfe2eb0e28027c16cbe3cacb28aecb8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous external links, many pointing to compromised CMS upload directories, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly supports this malicious intent. The ML classifier also flagged the PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5915

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://allytemp.ru/uplcv?utm_term=feature+filmmaking+at+used+car+prices+pdf PDF link annotation
    • https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/b8e48115919945a2878f6da9f8310410/61785512265.pdfIn PDF document text
    • https://twr1115.net/files/fckeditor/file/febixidikazixaguxa.pdfIn PDF document text
    • https://panegovernance.com/ourprojects/chowki/UserFiles/file/15315519759.pdfIn PDF document text
    • http://timandlor.com/userfiles/file/labotovu.pdfIn PDF document text
    • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/abf0f5b607d74e4e96f6fd7b6360635a/41085972720.pdfIn PDF document text
    • https://ensasoft.com.tr/wp-content/plugins/super-forms/uploads/php/files/liibv7gpeoklnkgcvtcj5hrub8/tedenufi.pdfIn PDF document text
    • https://matras-matrasych96.ru/admin/ckfinder/userfiles/files/8223572341.pdfIn PDF document text
    • http://project-lovcen.me/userfiles/file/zelufewagifopobamagokofup.pdfIn PDF document text
    • https://adepotcustom.com/UploadFiles/file/20210507082216125.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af670e3dd11.pdfIn PDF document text
    • https://dadesigning.com/daduserfiles/files/14772748978.pdfIn PDF document text
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a44bee810a4---juluwe.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607224600055c---gagisawuziseramuxowarosi.pdfIn PDF document text
    • https://baoyi-chuck.com/ckfinder/userfiles/files/78427729881.pdfIn PDF document text
    • http://3e-recycling.ru/app/webroot/filesfiles/wojerisu.pdfIn PDF document text
    • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1607777c2ccbac---12175271531.pdfIn PDF document text
    • http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3eb5347c47---lamabefofokekofuw.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608c3a06c9f54---vukekebogudafuvedaz.pdfIn PDF document text
    • https://fenixfalt.com/userfiles/file/sijozuziriku.pdfIn PDF document text
    • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/c0987bd25daa75f3d21787735b8f31aa/37215121701.pdfIn PDF document text
    • http://fernandopelosini.it/userfiles/files/57949952633.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f059a69051---tewivovoposomogobefekap.pdfIn PDF document text

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