Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd02677647d1c70e…

MALICIOUS

PDF

106.0 KB Created: 2021-08-14 07:52:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 9be480ba8b9bcddc76b1045a54f74559 SHA-1: 5955675f57fae65e1e193737d3df84c85e59b21d SHA-256: fd02677647d1c70ee07341993eec51fe59a16f5c846cc4290212d49be5a2024c
176 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 an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to various domains, some of which are associated with compromised WordPress sites. The presence of these links suggests the document is designed to redirect users to potentially harmful websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9906

Heuristics 7

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://inwebjor.ru/uplcv?utm_term=comment+installer+whatsapp+sur+mon+iphone+6 PDF link annotation
    • http://arcdesantmarti.com/biocop/Images/images-editor/file/9874533621.pdfIn PDF document text
    • https://egyptsuntours.com/userfiles/files/dajejabejigavokubutoduf.pdfIn PDF document text
    • https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/jlcvfn20cttbrmptru15q8ldm1/ganovirofememifuzisi.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c28bebab516---14719717987.pdfIn PDF document text
    • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/32a664299ceb4275f677bf2c597add44/lopedapimeji.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1dbf31092---80602795126.pdfIn PDF document text
    • http://fanti-fitness.pl/uploads/assets/file/56339832290.pdfIn PDF document text
    • http://clinicaveterinariailmarzocco.it/userfiles/files/kuzemurodevonefutosoro.pdfIn PDF document text
    • http://nessium.net/userfiles/file/96638512326.pdfIn PDF document text
    • https://adikkeempat.com/contents//files/48284534935.pdfIn PDF document text
    • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607c7a5b38cc7---64555795274.pdfIn PDF document text
    • https://dolaodong.com/userfiles/file/28395124239.pdfIn PDF document text
    • http://mppscstudy.com/admin/usercontent/file/babofibolin.pdfIn PDF document text
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6bdab0861e---dunuwoge.pdfIn PDF document text
    • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3af5883fa7---82901550556.pdfIn PDF document text
    • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/4a0b217fc4924f384f7210211d62733a/75378901801.pdfIn PDF document text
    • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096dcb5b199d---boxaxokefozogaxewebosab.pdfIn PDF document text
    • http://capitolmetrophysicaltherapy.com/files/files/vitosunaluvojofadad.pdfIn PDF document text
    • http://galsabino.it/userfiles/files/91021272248.pdfIn PDF document text
    • https://toolsatool.com/userfiles/files/62608724652.pdfIn PDF document text
    • http://syuncyoku.jp/upload/file/50678233254.pdfIn PDF document text
    • http://jpind.pl/userfiles/file/30953865555.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608adcd751587---kujivifemipuzewix.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001203a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1203A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13851 10904 bytes
SHA-256: 329fa88733c24bbd521a949fea5547a1f7134c9b72bcadc4935b7d3ea19caf31
font_02_sfnt_off0001516d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1516D 16080 bytes
SHA-256: d9b8130aa6f9633ab3de79ff31e2004108ab7689d1c7a99745aef320e0a208db
font_03_sfnt_off0001669a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1669A 19512 bytes
SHA-256: 4ba38531467299c21ca2cfef5dc921bb425ad3fbd2a086f2c9a0259f2f5c6795

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