Malicious PDF — malware analysis report

Static analysis result for SHA-256 92c65b368997aedd…

MALICIOUS

PDF

215.3 KB Created: 2021-08-13 02:02:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 6dd8be1891bd2f6b4d6cdb534d991c37 SHA-1: ae589166dd6481d14e8ddb20d437931dacb57004 SHA-256: 92c65b368997aedd2f33045f4510e3471ce994ec220e40ad5a225479c496158c
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.007 JavaScript

The PDF contains a link farm hosted on a compromised WordPress site, which is a common tactic for phishing or distributing malware. The presence of PRC/3D content and a high ML classifier score further indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious destinations.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5840

Heuristics 5

  • PRC/3D content in PDF medium CVE related PDF_PRC_3D
    PDF contains PRC 3D content. PRC/U3D parsers have been a recurring Adobe Reader attack surface; treat as a related parser-exploit indicator rather than a specific CVE match.
  • 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.
  • 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://dubaimotorcycletours.com/uploaded_images/files/83938163096.pdf In PDF document text
    • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b446b3e9139---sapejesojup.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c70586b157b---bulebitixu.pdfIn PDF document text
    • http://all-pass.com/folder/editor/file/wirinog.pdfIn PDF document text
    • http://balone.net/_upload/file///sirise.pdfIn PDF document text
    • http://billsky.ee/files/file/fiwegudotufaf.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c4d344d3a33---bidizon.pdfIn PDF document text
    • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/fa19489f0620e6244264da93c1ecf3bc/lusegofazetufuwi.pdfIn PDF document text
    • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/ko69vnhlun0hmoaeupvcc8vr1r/xitavagawefugav.pdfIn PDF document text
    • https://polresseluma.com/assets/ckfinder/core/connector/php/uploads/files/98307004049.pdfIn PDF document text
    • http://cityclick.it/userfiles/files/gajasota.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f2b13ccb74b---78257522650.pdfIn PDF document text
    • http://location-venise.com/italie_documents/files/futidigedivixasudav.pdfIn PDF document text
    • http://attep.com/home/sandbox/domains/heekee.com.hk/public_html/ckfinder/userfiles/files/jozopatolax.pdfIn PDF document text
    • http://ghalemdi.com/userfiles/file/zarifub.pdfIn PDF document text
    • http://sdds.be/userfiles/file/paxufepelurumana.pdfIn PDF document text
    • http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160edf37f6d2f4---98414941664.pdfIn PDF document text
    • http://agiusfuneraldirectors.com/files/file/55381516690.pdfIn PDF document text
    • https://qnzar.com/files/16676728854.pdfIn PDF document text
    • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/54f7803b613783179abd689b9f222e28/jivegakarexanovobubudikox.pdfIn PDF document text
    • http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/gasakawinebej.pdfIn PDF document text
    • https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/1eddb50db50827a1fdd3974e2e4e7b59/vazusixu.pdfIn PDF document text
    • https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/2a752bb685e2682489f1c3a652282938/11357493159.pdfIn PDF document text
    • http://hondaototanan.com/upload/files/7199222382.pdfIn PDF document text
    • http://radiopoint.cz/userfiles/file/56963034998.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=python+crash+course+2nd+edition+redditPDF link annotation
    • 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_off0002cd84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD84 21600 bytes
SHA-256: 0886196ba78cc05d4430e3013f69d3fea59861620ad3a711acd8c8dda905d265
font_01_sfnt_off0003063e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3063E 10756 bytes
SHA-256: e640cc37bcd6077dcc080d785faaf1f3408925fe4d0490ea5050235c9768aa3c
font_02_sfnt_off00031f11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F11 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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