Malicious PDF — malware analysis report

Static analysis result for SHA-256 096fe3384a7f69c2…

MALICIOUS

PDF

73.6 KB Created: 2021-04-02 05:15:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4870d190ae458831c512de864a7a6e3f SHA-1: db504aeb66e71bddfc6f58d79930d145978880dc SHA-256: 096fe3384a7f69c21d36c8ba8b778781f8c37ab1607f81db8dd82b59562064aa
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that contains an embedded URL disguised as a vehicle owner's manual. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The primary IOC is the external URI pointing to zajinet.ru, which is likely part of the lure or payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=2006+suzuki+eiger+400+owners+manual
    • http://rixadixiji.scienceontheweb.net/vevatoragokelibaru.pdf
    • https://cdn-cms.f-static.net/uploads/4481839/normal_6058226b02d3b.pdf
    • http://mynasert.online/61864010208nu1az.pdf
    • https://cdn-cms.f-static.net/uploads/4391315/normal_600f5ed9c6b5b.pdf
    • https://static.s123-cdn-static.com/uploads/4368751/normal_5fef621289e14.pdf
    • http://kewotij.mypressonline.com/ugc_net_exam_books_for_computer_science_free_download.pdf
    • https://cdn-cms.f-static.net/uploads/4459939/normal_6043c0629564e.pdf
    • http://ygrash.website/19284027044cpjqo.pdf
    • http://vukufisoxe.iblogger.org/66418488573.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://931f52e6-cb68-4a93-8e02-54808d33f8b6.filesusr.com/ugd/6290de_eaeb20ecdfed4f6a861c0f23fe0c3035.pdf?index=true
    • https://46fb9a51-9e16-4ad8-811e-2f7ed01702f7.filesusr.com/ugd/53363c_f9d60d9b644342c79d1e4bfbf0987c21.pdf?index=true
    • https://c809e8a6-5bdf-489d-8d8c-df4e4638a115.filesusr.com/ugd/45a296_66c16af4ea354787ae267b80049b5ef3.pdf?index=true
    • http://buxodanukesidup.epizy.com/54078924189.pdf
    • https://e42ce0b3-f376-4cb5-9abe-507fdbb9570c.filesusr.com/ugd/603474_792467e9be6e486c8b02848b4209757d.pdf?index=true
    • http://fokugogubegu.rf.gd/how_do_i_fix_my_heater_that_wont_turn_on.pdf
    • http://nesemenofete.epizy.com/cadena_de_suministro_definicion.pdf
    • https://uploads.strikinglycdn.com/files/716c3ada-cb2b-46aa-a224-fc22650696f8/wahl_lithium_ion_trimmer_guards.pdf
    • https://uploads.strikinglycdn.com/files/d1adb9a7-8d94-4f82-87fa-facd5096040b/pimifi.pdf
    • http://vegubom.atwebpages.com/89649203690.pdf
    • https://436240a4-ef10-404e-ad90-c5cab949c7af.filesusr.com/ugd/3fb742_b3d7e7b6585d4a34a8869f04b5975e78.pdf?index=true
    • http://gofuxanuwuj.rf.gd/backuptrans_android_whatsapp_to_iphone_transfer_full.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_off0000e1ee.bin
0d1596d1aea4c31caa178b82a8abe608ee7d81bfcdcc422a5dc2ad06282b9266
pdf-font-stream PDF embedded font (sfnt) at offset 0xE1EE 5632 bytes
font_01_sfnt_off0000f52b.bin
004a37c46ab53291ff74095332903b9507aff6290baaf0758869848f73ebc07f
pdf-font-stream PDF embedded font (sfnt) at offset 0xF52B 10624 bytes