Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae515a56cd2d42ed…

MALICIOUS

PDF

80.4 KB Created: 2021-08-18 16:52:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 8be04306363aa28b9a58b6485091aac8 SHA-1: 7f56218b861757bd04d01861bd678cf6eb70c925 SHA-256: ae515a56cd2d42edcbe1bc1b2f181fa9f68573597c9f7d1fc6933a1ff94bd4d9
174 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links pointing to external PDFs hosted on compromised WordPress sites and a raw IP address, suggesting a phishing or malware distribution attempt. The document body is heavily obfuscated and does not provide clear textual lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8071

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 http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090329466092---73199974009.pdf In PDF document text
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160c234c3f124c---bokapinefatidejeluwu.pdfIn PDF document text
    • http://beloezoloto.ru/userfiles/file/pizeraxugodiligudalupe.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608f470181515---89989497427.pdfIn PDF document text
    • https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/j0kso5g1rqp0d3nhv0fdms83m4/doruledudiwunujaxalapej.pdfIn PDF document text
    • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb2a761561---rudogejevodov.pdfIn PDF document text
    • https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/cb4501f94f157ceb39f039b5d6548b80/bibiwuxigemugup.pdfIn PDF document text
    • http://xn--9w3b11kh5l.com/ckupload/files/najilikeg.pdfIn PDF document text
    • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0e1dea5da---37175986680.pdfIn PDF document text
    • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/v8rhoa4e27ir5mqc3crbmto20k/tozuvukubafaru.pdfIn PDF document text
    • http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609f63dea8733---xizosotivodimikewevofewog.pdfIn PDF document text
    • http://211.129.1.225/system/ckfinder/userfiles/files/jibelopadizinon.pdfPDF link annotation
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/0e817cc853e44d52fe80322a918b3229/lotiwoburabevixezuw.pdfIn PDF document text
    • https://motelandratecuci.ro/userfiles/file/52903437717.pdfIn PDF document text
    • https://makiriaszto.hu/ckfinder/userfiles/files/nuzelupikige.pdfIn PDF document text
    • https://alternativecarrepair.com/userfiles/file/benidalidevoxadebemifox.pdfIn PDF document text
    • http://lukoilmarine.com/ckfinder/userfiles/files/617100In PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=ejercicios+de+adjetivos+calificativos+para+tercero+de+primariaPDF link annotation

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