Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ee296502789a541…

MALICIOUS

PDF

81.8 KB Created: 2021-09-07 13:59:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: ba417af89abc8165f4515ffea25efa1b SHA-1: be803f61c82a31fc24f9d33f48bf97f77e65e63e SHA-256: 9ee296502789a541d4a0595298ba9fecbb41b08f8684bdb7d5dff03e23769d83
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or malware distribution attempt. It contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The PDF structure and embedded links are indicative of a phishing lure or a downloader for further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://crysiq.ru/uplcv?utm_term=2017+winnebago+view+24v+manual PDF link annotation
    • https://ludifrance.fr/userfiles/file/wonugo.pdfIn PDF document text
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/dc7e738ca5fbf0b7680f1a3eeaf3425c/48602389087.pdfIn PDF document text
    • https://bikinibody.be/wp-content/plugins/super-forms/uploads/php/files/8mi2ct86r6guh4o6b0es148527/gojowizutuxonipazoje.pdfIn PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/717e09f0c084502ad775d70b0e6696d4/xoxumedikikogaja.pdfIn PDF document text
    • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/5f653c0fb493a91e44ea2856bcb64340/lazokurikomel.pdfIn PDF document text
    • http://openendrep.com/userfiles/files/mufawobeve.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b79974633eb---55217805707.pdfIn PDF document text
    • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16070140f33ce1---96771613571.pdfIn PDF document text
    • http://acupunctuuryao.nl/ckfinder/userfiles/files/27615740721.pdfIn PDF document text
    • http://saltokisport.com/uploads/files/23856483853.pdfIn PDF document text
    • http://gianphoiduyloimodel.com/Images_upload/files/nevavunogasoje.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/47668394160.pdfIn PDF document text
    • https://123natura.com/stockages/files/mobuwino.pdfIn PDF document text
    • https://interior-mark.com/ckfinder/userfiles/files/67403953077.pdfIn PDF document text
    • https://premiersuli.hu/files/files/gojitebaxa.pdfIn PDF document text
    • http://vodnik48.ru/content/file/xojamiwerejevakorol.pdfIn PDF document text
    • https://mycocoa.org/images/upload/files/xanuxubijalaxijadam.pdfIn PDF document text
    • http://hpc1970reunion.com/clients/3/3e/3eb4c5728feca7eb79feed4eed44c519/File/68545563020.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160883fd31010f---nipikufabexiwof.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/0d72ac9d54e2e0727aeeb46b95e18311/boguvimesomavod.pdfIn PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d876a19b3a5---58469519861.pdfIn PDF document text
    • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c88a3f31362---52280094374.pdfIn PDF document text
    • http://gshosnab.ru/userfiles/file/31132533136.pdfIn PDF document text
    • http://leebyenghun.com/new/upload/board/files/rekavefofefidoxexemi.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160be25169632f---fibazigetowoxono.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d94b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF162 10800 bytes
SHA-256: e2fa4d93108a423549d7f9b85a4983dc6df0b95e1f747cf9db8e7a157ac8b2a8
font_02_sfnt_off00010a63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A63 18012 bytes
SHA-256: 2699afb8d9d5dfeb900effe61eec732f80171382bbcd7937919ee0ab406b3d45

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