Malicious PDF — malware analysis report

Static analysis result for SHA-256 36bab8371c89c233…

MALICIOUS

PDF

60.8 KB Created: 2021-07-15 09:48:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: f41844fd757eff0bb9a45957a7cf12c2 SHA-1: 615ffcf271f9c20b085fc7e2e253134422435f4a SHA-256: 36bab8371c89c2339e5ce206e1d3f392066590b0c85b8c0cc90130a30740c721
162 Risk Score

Malware Insights

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

The sample is a PDF document containing embedded JavaScript, which is a common technique for executing malicious code. The PDF also contains numerous external links, many of which point to compromised WordPress sites and disposable hosting, suggesting an attempt to distribute further malicious content or phish users. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608f91571c446---wupijotejilari.pdf In PDF document text
    • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f646ed6d5f---vukadonulofavewed.pdfIn PDF document text
    • http://goldendazzle.com/upload/quangtri/files/36968470819.pdfIn PDF document text
    • http://eko-inwest.eu/upload/file/sokon.pdfIn PDF document text
    • http://henca.com/files/details/file/mavififatir.pdfIn PDF document text
    • http://www.provinces.cmcgeneralate.org/files/js/ckfinder/userfiles/files/xuvojupodug.pdfIn PDF document text
    • https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/037b52b0b548909bec5e84aee6125df3/menerimupozuzixapuji.pdfIn PDF document text
    • http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da5f868ed15---datutim.pdfIn PDF document text
    • http://karate-talence.com/newsite/userfiles/files/47153668396.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d9f4b8cf031---49113341247.pdfIn PDF document text
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b0abe7adbab---ropozivoribozakadoju.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a436d33a60a---60053156396.pdfIn PDF document text
    • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/c6542d70d1dc061b340afa9aacaeb8bf/ramov.pdfIn PDF document text
    • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607759e4df13c---54149548235.pdfIn PDF document text
    • https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/g5351qmo7h11bru40kr2vheem7/12517193725.pdfIn PDF document text
    • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/160726d4e72ee9---79280849295.pdfIn PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0705be1416---67979245133.pdfIn PDF document text
    • http://chipgene.com/image/files/20210710_050113.pdfIn PDF document text
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/mmiqcdabb23aqgjb8n839sis00/71423370428.pdfIn PDF document text
    • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/d6c679ef1e4fcbd9b308482c69c74e04/76008113963.pdfIn PDF document text
    • http://cnkls.com/userfiles/file/1622634808.pdfIn PDF document text
    • https://eyetracking.pl/userfiles/file/56580632772.pdfIn PDF document text
    • http://jarosi.hu/files/file/71630135844.pdfIn PDF document text
    • http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/ib94hfhbuskd01o96ufbn9fnl5/kozozazaxewi.pdfIn PDF document text
    • http://dailyliving.nl/ckfinder/userfiles/files/nugirawu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=importance+of+educational+law+to+teachers+pdfPDF link annotation

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