Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ea583f6944c6669…

MALICIOUS

PDF

71.7 KB Created: 2021-04-03 04:14:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 4a575385439f18e2206570e64ac7c74d SHA-1: 13a230c7377aa9d0b7b7209ed72af43c6e48e28d SHA-256: 0ea583f6944c66691d77ccec4c13cf3d420d9bb2c99e2e29f27dc6515f829933
96 Risk Score

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://zajinet.ru/123?utm_term=derivation+of+ellipse+equation+pdf PDF link annotation
    • http://bestplacefor.rest/clumsy_ninja_hack_2020hyclk.pdfIn PDF document text
    • http://presalon.xyz/pinene1lnk7.pdfIn PDF document text
    • http://copyrighytsupport.com/28888700409llero.pdfIn PDF document text
    • http://nakekizedexu.getenjoyment.net/a_la_recherche_du_temps_perdu_proust_commentaire.pdfIn PDF document text
    • http://gnfcns.info/what_is_step_6_in_aaa2151.pdfIn PDF document text
    • http://lebuvowune.getenjoyment.net/wepajuxejilixepevopug.pdfIn PDF document text
    • http://axecheat8.xyz/asus_router_n66u_login97sbz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8c4778c4-ed17-4cf1-86f9-5448e21c5c15.filesusr.com/ugd/6da380_0e74b0ea2afe49d2835344440b62f1f5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/math_worksheet_for_6th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/formazione_professionalizzante_apprendistato_durata.pdfIn PDF document text
    • http://fewedafov.rf.gd/datidosejutasi.pdfIn PDF document text
    • https://e691ad07-92dc-45fa-af10-8929b4045ede.filesusr.com/ugd/87b9a8_e63796d6f8e04571b37d7e997e88d94b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/liwafo/57477613216.pdfIn PDF document text
    • http://bipegokatif.onlinewebshop.net/mapa_localidades_bogota.pdfIn PDF document text
    • http://febarodun.epizy.com/98820471240.pdfIn PDF document text
    • http://fezitovowikawof.epizy.com/road_to_hana_driving_map.pdfIn PDF document text
    • https://580b68e3-2104-4118-ae5b-4f285de1c062.filesusr.com/ugd/dad7b5_1a53088f99e941998c4e34ceeac5d94e.pdf?index=trueIn PDF document text
    • http://zifiwetoma.epizy.com/frases_de_amor_entre_perros_y_humanos.pdfIn PDF document text
    • https://992bddda-184d-467f-a815-0165b41a2208.filesusr.com/ugd/69695d_19d55ce49bf14f158b6b8d54cecc6786.pdf?index=trueIn PDF document text
    • https://45f91bdd-2b68-4e60-ae2c-b14373ae5332.filesusr.com/ugd/0d089b_fde9810c545142e6939c0c9bf2d1d63b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/jasegosoxofidupuxaxif.pdfIn PDF document text
    • https://s3.amazonaws.com/jowutoneranemuk/bodyguard_episode_2_subtitles.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_off0000d983.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD983 5220 bytes
SHA-256: 7346a2798085c186fc9566cd1a111f2f86d4e0395edb515a6c86bd137cac4e5c
font_01_sfnt_off0000eb5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB5C 11256 bytes
SHA-256: 9e35c993e2f1fceba2f8d41bf8a8384c6fb9fb89bad2300c10eb263b5981b6e5

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