Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2cca6b2aa89e881…

MALICIOUS

PDF

39.4 KB Created: 2020-10-29 12:32:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: f2efc917650b624eec7114cdbf227418 SHA-1: d99d9e1059a76c98b187e74945748601610d4627 SHA-256: c2cca6b2aa89e881bdfa5aed04f45cd2c6c633d282eeae5b0d4d2a68df82000d
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/aws?keyword=club+penguin+rewritten+mascot+tracker+discord In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/vefugerinavokat.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/disbursement_voucher_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e22c842d-4b28-4407-af2c-95ac93991e2f/google_earth_flight_simulator_controls_flaps.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f51c884-47d9-4932-a3de-dc920e9dfa66/40898274009.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8287edd2-496e-4c06-9e19-38f2c6fce266/5133874209.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f17e3f5a-f514-468a-8a71-f251bf474afb/dadulozixaf.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/que_es_agrotecnologia.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/labour_law_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/babf13b0-d598-44ed-9448-b6fc34c37a4b/pewujiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae25ff84-3098-4d4f-ac1a-16e9d8abf5f7/saxophone_sheet_music_popular_songs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3098eab4-ee50-43ec-aef2-031d2041e00f/guxomejusevajibes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f2fc6cc-0acb-47fa-84b6-f30f609faa16/bavogamopuxowonoloxani.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/amparito_roca_brass_quintet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9510004f-42bb-4279-9fcb-c013d48b6d3d/strategic_management_and_competitive_advantage_5th_edition_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/40174716711.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/69488514650.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a20c8d4-660b-4c6e-abf3-9916e7f51a9f/16537109402.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6977c69-ee96-4b82-99c0-8d00b2d06166/tavatife.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33cb55d8-38ea-475f-bfec-9a24165d3fc5/whispers_of_the_vampire_s_blade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d628a1c-7234-45a0-8e3b-7b6ac754cdae/mosuzozajikesemumi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1c4f357-6df6-4f66-a493-1dde98d0ccea/60337171094.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_off000057f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F5 5592 bytes
SHA-256: 8874a2891ddc6b96e48bb3b69664cbd9d8c06ed80c9649972a69ffc823c738d0
font_01_sfnt_off00006aef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEF 10944 bytes
SHA-256: fdd0ab2afd072d57c5a6f2c608756dc09b7bb5159fac3998aea7eb02d66c8636

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