Malicious PDF — malware analysis report

Static analysis result for SHA-256 83150c9e2c446437…

MALICIOUS

PDF

127.6 KB Created: 2022-06-10 05:41:23 +02:00 Authoring application: birvana (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: f494c18323b7c1cbbd7ed3b7ec770230 SHA-1: 7fb50c196cffdd9b54521e443d115aa9564f6727 SHA-256: 83150c9e2c4464379fc03e90e5c50df53b266722cfa3fda7d3aa2f5f8c4245d7
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF document contains a significant number of external links, identified as a PDF URI and a PDF SEO link farm. These links, such as http://evacdir.com/glial/miller/goth.possibly.ZG93bmxvYWR8RkwyTjJKak9IeDhNVFkxTkRjNE1EZzNPWHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/sincerest/cmFkbWluIGxpY2Vuc2Uga2V5IGtleWdlbiBjcmFjawcmF.helpfulness.swag, likely lead to malicious websites for malware distribution or phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier clean score 0.0227

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://evacdir.com/glial/miller/goth.possibly.ZG93bmxvYWR8RkwyTjJKak9IeDhNVFkxTkRjNE1EZzNPWHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/sincerest/cmFkbWluIGxpY2Vuc2Uga2V5IGtleWdlbiBjcmFjawcmF.helpfulness.swag
    • http://infoimmosn.com/?p=4151
    • https://facenock.com/upload/files/2022/06/Xgt92QZzYae3KelCTfcD_10_b5b2e7eed5f611bfe2c9e56bb3a322e2_file.pdf
    • https://www.yatrdu.org/advert/nude-princess-srirasmi-mediafire-updated/
    • http://mycryptojourney.blog/?p=26840
    • https://www.pickmemo.com/upload/files/2022/06/lx4ZAJ5vNM2OuijJXdCo_10_67727e6d94ba0a4a2fa5467c6f306372_file.pdf
    • https://ameppa.org/wp-content/uploads/2022/06/A_Course_In_Fuzzy_Systems_And_Control_Solution_Manual_Pdf.pdf
    • http://shop.chatredanesh.ir/?p=24167
    • http://nuihoney.com/wp-content/uploads/2022/06/Landirenzo_Software_Omegas_2010.pdf
    • http://estatesdevelopers.com/wp-content/uploads/2022/06/Xforce_Keygen_PowerShape_2019_Crack.pdf
    • https://abbasiyatoday.com/wp-content/uploads/2022/06/reajann.pdf
    • http://cyclades.in/en/?p=38803
    • http://aircraftnewsy.com/wp-content/uploads/2022/06/wakeboo.pdf
    • https://wojdak.pl/samsung-tv-camera-vg-stc2000-driver-for-windows-7/
    • https://alaquairum.net/rafael-de-pina-vara-diccionario-de-derecho-pdf-to-jpg/
    • https://ztauctions.com/technology/vray-for-sketchup-2014-free-download-full-new-version/
    • http://myquicksnapshot.com/?p=5507
    • https://chatinzone.com/upload/files/2022/06/sJ7Z86ETaEvVwSM2oyyD_10_67727e6d94ba0a4a2fa5467c6f306372_file.pdf
    • https://estalink.fun/upload/files/2022/06/HCOlviarYyrHAiBfYBho_10_67727e6d94ba0a4a2fa5467c6f306372_file.pdf
    • https://www.chimfab.com/wp-content/uploads/2022/06/Boku_No_Pico_Sin_Censura_Video_Index.pdf
    • https://www.pickmemo.com/upload/files/2022/06/lx4ZAJ5vNM2OuijJXdCo_10_67727e6d94ba0a4a2fa5467c6f306372_file.p
    • https://hobiz.s3.amazonaws.com/upload/files/2022/06/jtyAAORjMopgemuIcSxi_10_21c1c3093321b15291ecc3e469a16490_file.pdf
    • http://www.tcpdf.org
    • https://hobiz.s3.amazonaws.com/upload/files/2022/06/jtyAAORjMopgemuIcSxi_10_21c1c3093321b15291ecc3e469a16490_fi
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00001a62.bin
a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1A62 120140 bytes

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