Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f2b58107eee6fe3…

MALICIOUS

PDF

51.2 KB Created: 2021-06-14 02:58:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 39f781f3f2a11ee1d7e02cdf347c583b SHA-1: 03e17d0762dd556c68081d6506110bec068507c4 SHA-256: 7f2b58107eee6fe38a3ef559a455d83351dde462af4812364985961504a2f34d
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a phishing or trojan threat. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The embedded URLs and the nature of the heuristics strongly indicate an attempt to lure victims to external sites for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7149

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://pistant.ru/uplcv?utm_term=mai+sin+rai+fai+sawart+online PDF link annotation
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607326c27f7a4---degepogebofefuwomevosona.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/m8g8j6ueqktnn1gtv7frg1s6s1/konugegowitidugubibu.pdfIn PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc5c7b2a91---51664765682.pdfIn PDF document text
    • http://attlas.center/userfiles/file/48405402975.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b5202a3b2a6---5044622142.pdfIn PDF document text
    • https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/daa17a58080e35249a6a08e39dacfa62/56230089173.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160ae71b92d9e5---20014864206.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bf01f7d44f9---pitazokukogipotekuve.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609d2a32541e2---juwajinigitedu.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/et76292lr00lv6bv8g6tt7lujd/49827121517.pdfIn PDF document text
    • http://anthonyvienna.com/sites/default/files/file/womarin.pdfIn PDF document text
    • https://bilalyapidekorasyon.com/userfiles/file/vogun.pdfIn PDF document text
    • http://purofirstli.net/userfiles/file/45486602462.pdfIn PDF document text
    • https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607792a11fcb3---wapapafokuraxitumefazikiw.pdfIn PDF document text
    • https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/e50985b9b37da536cc06ff367662d7ce/gozogekukupawakuvun.pdfIn PDF document text

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