Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eafcf673d0735ce…

MALICIOUS

PDF

76.8 KB Created: 2021-03-10 05:12:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d8423201247fb9dee155be69854a4e26 SHA-1: e0b80b270a29b66989c275f0c0dc07360a5048c1 SHA-256: 6eafcf673d0735ce6883a119d532c7f2b43500ccf55e4453fb3dc796568d5f63
96 Risk Score

Malware Insights

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

The file is identified as malicious by a ML classifier and ClamAV, with a high risk score. It contains an embedded URI pointing to 'https://kuzutuzo.ru/123?utm_term=algebra+2+practice+workbook+pdf', suggesting a phishing or malware distribution attempt disguised as an educational resource. The PDF structure and embedded content indicate it's designed to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://kuzutuzo.ru/123?utm_term=algebra+2+practice+workbook+pdf
    • https://static.s123-cdn-static.com/uploads/4470553/normal_5ffba58c763c2.pdf
    • http://guwodela.iblogger.org/descargar_app_android_tv.pdf
    • https://cdn.sqhk.co/bokupajokim/5yUw1hd/europe_car_driving_simulator.pdf
    • http://ig-copyrightnotice.com/what_is_alley_cropping_simple_definition6ehhb.pdf
    • http://maddot.space/coulombic_attraction_pogil_answerspdm2n.pdf
    • http://cuzinfo.ru/vizanudamolefevejozenai5e.pdf
    • https://cdn-cms.f-static.net/uploads/4528780/normal_6015687713eab.pdf
    • https://cdn.sqhk.co/feguzuvubut/lEhhkhg/34278163226.pdf
    • http://pesoxigesu.iblogger.org/41524912864.pdf
    • https://cdn-cms.f-static.net/uploads/4369914/normal_6029c71b0b80f.pdf
    • https://static.s123-cdn-static.com/uploads/4379987/normal_5fdde50134bb2.pdf
    • http://topvideo.design/how_much_weight_can_you_lose_on_a_5_day_cleansei74tt.pdf
    • http://aazzzry.space/batch_file_for_loop_example_multiple_commands0bp6e.pdf
    • https://static.s123-cdn-static.com/uploads/4365612/normal_5fe1cbe17f5b6.pdf
    • http://sawezudo.iblogger.org/ansoff_matrix_definition.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bodasubosixo.rf.gd/kogusixofomelo.pdf
    • https://uploads.strikinglycdn.com/files/3948859f-b444-4f8c-b008-e36e17f2c850/punozukuburamopagixarexeg.pdf
    • https://uploads.strikinglycdn.com/files/da0a7a0b-7730-42dc-ac86-2116bd61356f/niv_student_bible.pdf
    • https://uploads.strikinglycdn.com/files/a9264de4-8763-47cf-889a-ae39f1b66895/how_long_does_the_snow_whitening_kit_last.pdf
    • https://uploads.strikinglycdn.com/files/10bff537-2b6a-4788-9e43-e1147610f1f9/intermediate_algebra_for_college_students_8th_edition.pdf
    • https://uploads.strikinglycdn.com/files/93cdc7c7-6b0d-4731-9df9-f388ec1ac4c0/38272822048.pdf
    • https://uploads.strikinglycdn.com/files/0a39eee0-17e5-4bd9-9f75-b24be13a1e3d/gesaxapu.pdf
    • https://uploads.strikinglycdn.com/files/d3b4bee2-d991-4fc4-9632-509eb507e386/dell_optiplex_755_graphics_card_specs.pdf
    • http://tukuzadixejune.epizy.com/uc_browser_free_for_pc_2019.pdf
    • https://uploads.strikinglycdn.com/files/2870ef84-dd17-4449-ae7f-9127ba1cf867/perforateur_bosch_pbh_2100_sre_avis.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e90c.bin
7544927da0dda04eb77ec50f8d3d95bdd0137040fc3c1703549acaeb4ebe0397		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE90C 5564 bytes
font_01_sfnt_off0000fc1f.bin
cb7e61e41349cff1b5e4fa645477bc2a40e316faa1f5d0fb9e3c65d993c8bcdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC1F 12044 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.