Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c3597e08f01a27f…

MALICIOUS

PDF

76.7 KB Created: 2021-05-20 23:59:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 49358b06925b599dc628c7741caae51f SHA-1: 514399ddd2b312ff0ca80103ad7598462396385a SHA-256: 5c3597e08f01a27fbd88dfc6ea4d8e852b1dbf589767fbdc743ce73e2905f59e
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. The document body, though partially corrupted, contains text suggesting a lure for downloading a movie, which is a common social engineering tactic. The embedded URL points to a domain that likely hosts the malicious payload or redirects to a phishing site.

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://dugedepap.ru/strik?utm_term=taken+full+movie+in+hindi+free+download+mp4 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375703/normal_602d972fe37a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384821/normal_605fc1464526d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421476/normal_606874d3adc61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402964/normal_601fd603c7640.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393635/normal_60275ac4c1d4a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/how_to_use_tape_diagrams_to_divide_fractions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa922c7d-3869-4a98-aadb-ccc6aec239fc/52390359525.pdfIn PDF document text
    • https://s3.amazonaws.com/falejogajir/risk_assessment_matrix_template_hse.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/96868560063.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/463ee1b8-7c25-4b1d-aace-b79b4494113a/how_to_know_my_post_office_account.pdfIn PDF document text
    • https://s3.amazonaws.com/xenavuxa/administracion_publica_peru.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/97525897503.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/kepedaposogubirotakunok.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/kowutovekigiwovusuzaxe.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/best_book_about_wine_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/towutoginadivu/what_methods_did_suffragists_use_to_get_the_right_to_vote.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/postal_address_to_send_attendance_allowance_form.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/radio_interview_script_format.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/new_south_movie_full_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/kidemuvobosuzaxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d43d82cd-9904-4222-a620-268baf91e015/kawogagoleziz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce1f25b6-9ce6-46f9-9a4c-3e1175af4a8d/risezi.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_off0000ee4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE4E 5356 bytes
SHA-256: be4dea4da71762a0fa8283a42c9e6a8960369faf79ead308d806af00e20640ee
font_01_sfnt_off0001007e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007E 10756 bytes
SHA-256: fd7fa4a47fc582aca194a8e6acf053e1cb551ebf0f8cffe32058b789ba7c039b

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