Malicious PDF — malware analysis report

Static analysis result for SHA-256 20962db286e1b7a5…

MALICIOUS

PDF

124.9 KB Created: 2021-03-12 04:29:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: cfcfa699023cc53a07c6125cc5418319 SHA-1: ed0d43bb37910cac2fd5df7ee51f8ca9bdf3433e SHA-256: 20962db286e1b7a506dcb9fcff9fde633f481ef5950f7c0e00ae0996311ead1a
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to zajinet.ru, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to construction project specifications, intended to deceive the user.

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/award?keyword=exemple+de+cahier+de+charge+d+un+projet+de+construction+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379486/normal_5fd6c3952069e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462379/normal_5fed48975e1b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486563/normal_6031667ac67db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365546/normal_6015b5f6df96b.pdfIn PDF document text
    • http://mademupo.22web.org/86006396351.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/7fe36519-148f-49df-a711-980af3fbc0f9/bufanajer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f800606-ab38-449e-80d7-e618c81ec340/what_does_it_mean_when_they_say_power_couple.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/46467003159.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15fd5456-eed4-418b-8ed4-5fb566587086/what_were_the_three_main_types_of_plays_that_shakespeare_wrote.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/792b06bd-bcb5-4d21-9401-01644ab51af9/poxojudepokefes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/853147db-9f3f-4298-9430-1dbef150a70f/speed_queen_top_load_washer_best_buy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6567e87-5632-42aa-a08d-7ef351b9a6cb/tavebowevonux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c94f33b-1276-4710-8648-817789fdf425/75917841937.pdfIn PDF document text
    • http://lemijafuw.epizy.com/laravel_5._7_reset_password_email_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcf8432e-b831-45d0-86bf-b7083c430f49/wowererit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec19014d-7ba7-47ef-942d-c6c6125df83c/cell_stephen_king_book_review.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/exercices_corrigs_filtres_actifs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d730be12-cd9d-4d9d-9f7f-4e7e3bf259f0/what_foods_can_you_eat_on_the_10_day_advocare_cleanse.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/scientific_notation_word_problems_8._ee4_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/etrian_odyssey_5_class_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7763b642-eea3-4eaf-9e77-a8101af8af59/what_does_it_mean_when_service_airbag_light_comes_on.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fdaba95-7cfc-420f-856f-86181c441de3/40015675158.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/72604133347.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_off0001aef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AEF2 5668 bytes
SHA-256: da506efaabda0980c0310482d6926b47c1ae807c751ef6b8f0838e5ad7c9a3ce
font_01_sfnt_off0001c21f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C21F 10304 bytes
SHA-256: ba4c9339a56f5a188a9b5746c6dd956c17564a15a827f0dff386d633c9414db0

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