Malicious PDF — malware analysis report

Static analysis result for SHA-256 a04a997481de1464…

MALICIOUS

PDF

63.7 KB Created: 2021-09-21 06:56:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 9f796dfb3ea3960daf4979188a7f4de2 SHA-1: 1dfbdf86526da8b81ec9238609da21a0a14482ed SHA-256: a04a997481de1464b879ca29e8a6751ba2bb93854e2dd141d451b1e00b3cfef5
144 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV, indicating it is likely a phishing or trojan distribution attempt. The heuristics reveal it functions as a link farm, directing users to multiple external URLs hosted on potentially compromised WordPress sites or disposable domains. The embedded URLs and the document's structure suggest an intent to redirect users to malicious content, possibly for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4625

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 https://ketchas.ru/uplcv?utm_term=death+moto+2+apk+download PDF link annotation
    • https://yingzhaoliuart.com/upload/file/90391193729.pdfIn PDF document text
    • https://xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/62442245420.pdfIn PDF document text
    • http://qkmedica.com/uploads/userfiles/file/33561264840.pdfIn PDF document text
    • https://bahispesinde.com/gnc/veri/_files/36005937045.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b106a8cda0---vorugazupelewigazew.pdfPDF link annotation
    • https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/8c168b2794974f85e8e73c93fff3f5c2/2547745956.pdfIn PDF document text
    • http://droneducational.com/admin/userfiles/file/21210843305.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b7136a8de8f35557433f269cf41db03a/mikulopumewegikemaza.pdfIn PDF document text
    • http://taispacedesign.com/upload/files/98429857919.pdfIn PDF document text
    • http://18554080.com/userfiles/file/pilonazobefigesunise.pdfIn PDF document text
    • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/64d203d3de03ac2f8d09d50295b82720/17841973423.pdfIn PDF document text
    • http://cs-golfclub.com/ckupload/files/78652244907.pdfIn PDF document text
    • http://growlink.biz/userfiles/file/69259580899.pdfIn PDF document text
    • http://topp.pl/_topp/file/84751815670.pdfIn PDF document text
    • http://peoplefoster.com/pliki/wexojuleg.pdfIn PDF document text
    • http://zsdbiopharm.com/upload/files/lozamut.pdfIn PDF document text
    • http://sz-nuoyi.com/Upload/file/2021091202101890881.pdfIn PDF document text
    • https://cooperadora.grupocreartel.com/documentos/archivos/2292073247.pdfIn PDF document text
    • http://yenidenyuzlendirme.com/ckfinder/userfiles/files/86152040768.pdfIn PDF document text
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ef36a06082---17399186814.pdfIn PDF document text
    • http://bridgeonlaw.com/filespath/files/20210920082625.pdfIn PDF document text
    • https://thefertilizergranulator.com/d/files/46214811104.pdfIn PDF document text
    • https://contemporaryteas.in/admin/uploads/file/16201255700.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBF4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e40b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE40B 10596 bytes
SHA-256: 658d96109b4160464e68b7c8ff9dee401e617aa89ce08ad2267acb7a4b80ce22

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