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
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which appear to be SEO-driven and point to potentially malicious content or phishing sites. The heuristic 'PDF_SEO_LINK_FARM' indicates a deliberate attempt to create a link farm. While no scripts were explicitly extracted, the presence of numerous external URLs suggests the document's primary purpose is to redirect users to malicious websites, likely for malware distribution or credential harvesting.

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 PDF link annotation
    • http://infoimmosn.com/?p=4151In PDF document text
    • https://facenock.com/upload/files/2022/06/Xgt92QZzYae3KelCTfcD_10_b5b2e7eed5f611bfe2c9e56bb3a322e2_file.pdfIn PDF document text
    • https://www.yatrdu.org/advert/nude-princess-srirasmi-mediafire-updated/In PDF document text
    • http://mycryptojourney.blog/?p=26840In PDF document text
    • https://www.pickmemo.com/upload/files/2022/06/lx4ZAJ5vNM2OuijJXdCo_10_67727e6d94ba0a4a2fa5467c6f306372_file.pdfIn PDF document text
    • https://ameppa.org/wp-content/uploads/2022/06/A_Course_In_Fuzzy_Systems_And_Control_Solution_Manual_Pdf.pdfIn PDF document text
    • http://shop.chatredanesh.ir/?p=24167In PDF document text
    • http://nuihoney.com/wp-content/uploads/2022/06/Landirenzo_Software_Omegas_2010.pdfIn PDF document text
    • http://estatesdevelopers.com/wp-content/uploads/2022/06/Xforce_Keygen_PowerShape_2019_Crack.pdfIn PDF document text
    • https://hobiz.s3.amazonaws.com/upload/files/2022/06/jtyAAORjMopgemuIcSxi_10_21c1c3093321b15291ecc3e469a16490_file.pdfIn PDF document text
    • https://abbasiyatoday.com/wp-content/uploads/2022/06/reajann.pdfIn PDF document text
    • http://cyclades.in/en/?p=38803In PDF document text
    • http://aircraftnewsy.com/wp-content/uploads/2022/06/wakeboo.pdfIn PDF document text
    • https://wojdak.pl/samsung-tv-camera-vg-stc2000-driver-for-windows-7/In PDF document text
    • https://alaquairum.net/rafael-de-pina-vara-diccionario-de-derecho-pdf-to-jpg/In PDF document text
    • https://ztauctions.com/technology/vray-for-sketchup-2014-free-download-full-new-version/In PDF document text
    • http://myquicksnapshot.com/?p=5507In PDF document text
    • https://chatinzone.com/upload/files/2022/06/sJ7Z86ETaEvVwSM2oyyD_10_67727e6d94ba0a4a2fa5467c6f306372_file.pdfIn PDF document text
    • https://estalink.fun/upload/files/2022/06/HCOlviarYyrHAiBfYBho_10_67727e6d94ba0a4a2fa5467c6f306372_file.pdfIn PDF document text
    • https://www.chimfab.com/wp-content/uploads/2022/06/Boku_No_Pico_Sin_Censura_Video_Index.pdfIn PDF document text
    • https://www.pickmemo.com/upload/files/2022/06/lx4ZAJ5vNM2OuijJXdCo_10_67727e6d94ba0a4a2fa5467c6f306372_file.pIn PDF document text
    • https://hobiz.s3.amazonaws.com/upload/files/2022/06/jtyAAORjMopgemuIcSxi_10_21c1c3093321b15291ecc3e469a16490_fiIn PDF document text
    • http://www.tcpdf.orgIn 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/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00001a62.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1A62 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000c845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC845 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54

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