Malicious PDF — malware analysis report

Static analysis result for SHA-256 05c20c66989139bb…

MALICIOUS

PDF

80.3 KB Created: 2021-07-31 17:17:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 26456b6274b480672fe3d214189b50db SHA-1: b9daaaa485f02ca5e460c2e98d12d77bfb8c200a SHA-256: 05c20c66989139bb2df29902ed19f0b92b9ba9878e338b9786ff291c9171bcfe
154 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, indicating a link farm designed to redirect users. The presence of these links suggests an attempt to lure users to external malicious sites, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9838

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 http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/b59ffb3244ca82603a26abc617fed5fd/62001063150.pdf In PDF document text
    • http://mhs69indians.com/clients/864804/File/37952855523.pdfIn PDF document text
    • https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/ce92659e29e73c48871608c0888773be/59397034580.pdfIn PDF document text
    • https://sharjahcements.com/images/bulk_images/files/44882905295.pdfIn PDF document text
    • http://mmdplus.com/userfiles/files/20210621_020916.pdfIn PDF document text
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085eb0d0a154---xiwifazuliwitapo.pdfIn PDF document text
    • https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/15eascc5eicc339m70n71qin0f/70376437580.pdfIn PDF document text
    • http://bakoca.hu/files/file/95221028121.pdfIn PDF document text
    • http://hollandunitedreunion.com/clients/5/52/52f3fdf721cdccceb566e47094f1d9de/File/nemurufokupigona.pdfIn PDF document text
    • https://apoiotelecom.com/imagens/img_fckeditor/file/lonuwanowo.pdfIn PDF document text
    • https://isabellepieman.com/userfiles/file/velesipoz.pdfIn PDF document text
    • http://urduhadith.org/survey/userfiles/files/muvegojirewibixifijo.pdfIn PDF document text
    • http://whuntex.info/userfiles/file/3651950218.pdfIn PDF document text
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160e4d03f7d7b0---jebukimukukazabapixe.pdfIn PDF document text
    • http://neoneofytou.com/ckfinder/userfiles/files/15494480728.pdfIn PDF document text
    • https://jackyrouxmethode.com/userfiles/file/xatenowunorolowazowi.pdfIn PDF document text
    • http://nhactheducthammy.com/upload/files/38484675938.pdfIn PDF document text
    • http://sooclose.eu/upload/File/75450633529.pdfIn PDF document text
    • https://geneolock.com/locktactyuma/userfiles/file/65594063554.pdfIn PDF document text
    • https://interior-mark.com/ckfinder/userfiles/files/xonegupezok.pdfIn PDF document text
    • http://au-zlato.sk/upload/files/44748429503.pdfIn PDF document text
    • http://vetcarefoundation.org/userfiles/file/25286126915.pdfIn PDF document text
    • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/d6c63cac73ffb8e01a7a607513f3b9e7/85893535209.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=what+name+means+popular+girlPDF link annotation
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe604d4cd9---jusofasosugavaxufewafajat.pdfIn PDF document text

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