Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd7593bf6f0e797e…

MALICIOUS

PDF

124.9 KB Created: 2021-06-30 02:57:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: b7ff941b3330e9a9f8e2e5b6a525b976 SHA-1: 25c68058e4a806ca5fb6f3cb83018ebba61d27c9 SHA-256: dd7593bf6f0e797eccf0455dd29fff6f337dcf9e7b4e59ee9128373a6971d050
154 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs pointing to compromised WordPress upload directories and other disposable hosting. The primary purpose appears to be redirecting users to malicious content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6025

Heuristics 5

  • 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.
  • 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://ebsenglish.net/_UploadFile/Images/file/52098398515.pdf In PDF document text
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073b99c6db24---nopuxukizomegija.pdfIn PDF document text
    • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/f765e0b4202aee0da924f40dd536eaf3/58528668919.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160981fd14b022---89735513931.pdfIn PDF document text
    • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096afbfcefb9---24596348740.pdfIn PDF document text
    • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16071037583bc7---18537676836.pdfIn PDF document text
    • http://eprdel.cz/userfiles/file/pikiwijiwaribupupipoxaw.pdfIn PDF document text
    • http://globaltruthmediagroup.com/clients/a/aa/aa8380eac451876ae6ab993bf3a720d6/File/bipuvagozimutifipub.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160a43a4216ae2---sogugitonatazepupime.pdfIn PDF document text
    • http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/nj66t5glvun1n3k8qk09bk0j6n/38327941774.pdfIn PDF document text
    • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607a3f3a0bf63---64477456886.pdfIn PDF document text
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8122105dff---rebenaxobon.pdfIn PDF document text
    • https://jotekonybakterium.hu/userfiles/files/49992092557.pdfIn PDF document text
    • https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca6bebf541---38566046809.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1606c87fe455a7---godotebapoxur.pdfIn PDF document text
    • http://alexlunacoach.com/img/editor/file/67466231592.pdfIn PDF document text
    • https://argumentua.com/i/file/walijoremogusolonogixedun.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16078f3b920f80---57236576467.pdfIn PDF document text
    • http://faurerom.com/userfiles/file/33670172542.pdfIn PDF document text
    • http://hk-dcc.com/wp-content/plugins/super-forms/uploads/php/files/6lo66s708nbu1dhku32e519jpt/lusenisakidow.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b40597db2b2---wazilarimotudam.pdfIn PDF document text
    • http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16078ffeee4f1b---wovifikapelutomagidus.pdfIn PDF document text
    • https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/377e89a72526d6ee4824eddc712b22ae/giwewigadazojufufa.pdfIn PDF document text
    • http://bigband-ulm.de/userfiles/files/masowijosekagavun.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=acute+complications+of+diabetesPDF link annotation

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