Malicious PDF — malware analysis report

Static analysis result for SHA-256 455e2e17b0847a0b…

MALICIOUS

PDF

83.3 KB Created: 2021-05-18 18:16:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 351501bbb6ce16d60a492bc13e2e3183 SHA-1: d26cf31ba26c4f22c6f8dda3254c7b7c2ef9a7a0 SHA-256: 455e2e17b0847a0b31dd593d9ccf5e159afdea53af1e27a58d93a4493da7d70b
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a URL that redirects to a malicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of a suspicious URL within the document body suggests an attempt to trick the user into navigating to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://pelibifir.ru/strik?utm_term=how+do+you+use+microban+24+hour+sanitizing+spray PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452862/normal_600728113dcb4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450638/normal_600eabf37f400.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ecc16e1-6db2-489a-a1d6-895cd5c83f57/how_to_install_side_mount_dishwasher_brackets_bosch.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/barca_vs_sevilla_4-_2_highlights.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26b59e2f-0f36-4e13-b5dc-c95a0345b736/dometic_air_conditioner_specifications.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ad372f6-d68e-4b3b-888f-30772d34b30f/vovapupivuwine.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/garfield_2004_movie_tamil_dubbed.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/72940254993.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/082b9a05-8352-41c1-9eaf-567bbb0de474/walmart_photo_center_hours_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/zufojadibi/5297084162.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da791107-3403-4376-8c69-760c7636ebbf/wd_my_cloud_home_desktop_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d82c6b01-1a89-49c4-82a9-dba757b36545/kiss_the_rain_music_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e73e73b5-a24b-419d-9c74-67940913f677/ruwukatakoxabefuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/685d3cdb-da4b-443a-badb-26bc9093457d/volozodofeketozut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3f132ae-184d-4e6c-87bf-5ecfe076407f/management_of_electronic_and_digital_media_chegg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b86070e-5dcc-41ca-a2fb-98219582b600/honda_generator_7000_watts_electric_start.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28c1e4ea-3cd1-4f2a-8d67-3e28dfe027b1/boxajulifunusatu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08b24aee-b37d-46db-9bea-e2a68e16be2a/30948912835.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3f902d3-b506-4817-b998-e0a3f0bde74d/89322036144.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ebaa325-29e6-4477-9633-83bcd99f34d0/walmart_black_friday.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0503b37e-494e-446d-b165-531deec9071d/78469189844.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/991269e4-f864-487f-ace6-52996cb4ca38/serial_para_instalar_windows_8.1_single_language_32_bits.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/34645095758.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000103a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103A6 6020 bytes
SHA-256: 94c285d85b7d5615d82e723854864f410b861c7eea67ccb8824ec411e559d2a4
font_01_sfnt_off00011822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11822 11416 bytes
SHA-256: 36a878cd225cf3c678b33a6a04a5f9c624a8c198cef0a6a607f13bc3f5e23be6

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