Malicious PDF — malware analysis report

Static analysis result for SHA-256 0308383ea1f53ed9…

MALICIOUS

PDF

71.9 KB Created: 2021-04-01 03:40:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4eca88c5af15ed16b0e3c25d2b2d9972 SHA-1: 75074e02e5f071045525c724fbaae995e0ef5823 SHA-256: 0308383ea1f53ed9b8ad10813c08700585740d3b76d60cc8ae54dbe491dfcd7d
96 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 ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://botokaw.ru/123?utm_term=logo+quiz+answers+level+73 PDF link annotation
    • https://cdn.sqhk.co/rirelolut/fPu4hfO/saudi_arabia_visa_application_form.pdfIn PDF document text
    • https://cdn.sqhk.co/josipinu/Kicadgg/mba_study_app.pdfIn PDF document text
    • https://cdn.sqhk.co/sodelaranu/cihifdt/golf_magazine_top_100_usa.pdfIn PDF document text
    • https://cdn.sqhk.co/dofexoxev/7udO420/66587827247.pdfIn PDF document text
    • https://cdn.sqhk.co/pelopuxi/cTLgjgj/shark_ion_robot_r76_with_wifi.pdfIn PDF document text
    • https://cdn.sqhk.co/famagafe/FbijKvj/idle_town_conan_gray_ukulele_chords.pdfIn PDF document text
    • https://cdn.sqhk.co/fupipevu/QqheEhi/28327372773.pdfIn PDF document text
    • https://cdn.sqhk.co/raxulaxesob/NP1jggc/50765506849.pdfIn PDF document text
    • https://cdn.sqhk.co/zapevexuvot/f0gdPif/judge_dredd_vs._zombies.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/d780e39f-6087-4356-8052-070753c32958/how_much_does_27_months_equal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1fc248b-9b0c-47e7-b426-c8004f187669/10636586277.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90ebc7f3-26c4-4111-91d3-f22875518ecd/how_to_make_google_maps_route.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70ef8a8c-8277-4cac-94d9-073df8dbbc0d/what_are_the_social_problems_seen_in_your_society_list_them.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c999f699-ae82-473e-9eb9-39e08b867c33/pafabula.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ad7b58a-ba99-4368-8a88-9b44faf610b0/kalupatakapudowidafuduvaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18c52fcd-298c-4665-bb0e-58ebad6933c3/law_of_trust_in_malaysia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1329719d-b95f-4982-abea-7a80afc989dd/totevom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cf6aec6-5d6c-4000-b1da-aca56cb9e1b3/desaxalimik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf811d9e-29c1-45a2-a091-d5fc1cb3df57/compound_interest_questions_for_competitive_exams.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c41bc567-ec7a-4703-ba54-753b8284cf4c/4748748757.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d1b0144-9211-40c7-a3cd-6407dbc839a7/used_car_safety_inspection_checklist.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9ad4b22-7099-404f-b7f4-4db861655cb0/35090896885.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_off0000db40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB40 5364 bytes
SHA-256: dd4ef2345a6f545ece08cfd447ba4d00331ee42911f960b9ac58aad80ea88052
font_01_sfnt_off0000edbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBE 10752 bytes
SHA-256: 30192dc88782e859f618d63d7d448a2750e3256cfac6a5a20a6d5fc5c690a10f

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