Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e5c15b9465f8544…

MALICIOUS

PDF

49.8 KB Created: 2021-09-27 13:49:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 2430bc32809256f9182dc765c1ea9525 SHA-1: 248d5f895921dc0658996d8bd47569bb305c3ca5 SHA-256: 6e5c15b9465f85443e18b7624aa6e4f7965ac87d1b35f9758aa388bbd40efda3
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple embedded URLs, with one heuristic specifically identifying a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were directly extracted, the PDF structure and embedded links suggest it's designed to redirect users to potentially malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9001

Heuristics 4

  • 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.
  • 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://upservice.expert/admin/ckfinder/userfiles/files/jorejuza.pdf In PDF document text
    • https://edgecs.com/documents/69213059394.pdfIn PDF document text
    • https://techielingo.com/fck_uploads/files/1551918864.pdfIn PDF document text
    • http://infoegrafica.com/userfiles/files/sekatef.pdfIn PDF document text
    • https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/924cfe68fe96e6cc539d79b888fdc048/nadobewiw.pdfIn PDF document text
    • http://bluecars.pl/userfiles/file/vowojodejilalazorunebeko.pdfIn PDF document text
    • http://cartopack.be/Images/file/gofumom.pdfIn PDF document text
    • http://teplospectr.ru/images/files/75613158371.pdfIn PDF document text
    • https://excellencetogether.com/img/files/file/bifawo.pdfIn PDF document text
    • https://matfreklam.com/calisma2/files/uploads/99191120876.pdfIn PDF document text
    • https://thefertilizergranulator.com/d/files/gewuku.pdfIn PDF document text
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161495b0679853---41017766957.pdfIn PDF document text
    • https://aneri12.cz/res/file/fojus.pdfIn PDF document text
    • http://inistor.com/ufiles/files/vonezopojaxizafumuv.pdfIn PDF document text
    • http://chupanhnoithat.vn/upload/files/divujewapifegidilu.pdfIn PDF document text
    • http://tuzvedo.hu/elemek/file/sosurija.pdfIn PDF document text
    • https://art-gallery.mn/uploads/files/rumejirazo.pdfIn PDF document text
    • http://thekitchendesignstudio.org/uploads/files/97041182721.pdfIn PDF document text
    • http://fractinvest.com/uploads/file/48894539263.pdfIn PDF document text
    • http://prmakeup.com/Image/files/tadoku.pdfIn PDF document text
    • http://biomehl.com/images/content/files/kowolovotuniredik.pdfIn PDF document text
    • https://www.highlandernepal.com/assets/ckfinder/userfiles/files/83599272313.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=free+movie+download+karne+wala+appPDF link annotation
    • 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_off0000af3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF3A 10508 bytes
SHA-256: c5e1cd0a73610754a7c61e5cd4119d3828b94813923c7b50592d208a79e2545c

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