Malicious PDF — malware analysis report

Static analysis result for SHA-256 7768c3b90e0b33df…

MALICIOUS

PDF

86.0 KB Created: 2021-05-10 09:53:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99986cff306ba14df4cb41fc704f3712 SHA-1: 74a3a7774e3f6ed2f38f3200be9c362b389b0e19 SHA-256: 7768c3b90e0b33dffbbffea6ee62fe1ff9998cdca80b5e144083c5c6565bb1be
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Programa para los honores a la bandera primaria' and embeds multiple URLs, one of which is flagged as malicious. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jacksth.ru/strik?utm_term=programa+para+los+honores+a+la+bandera+primaria
    • https://cdn.sqhk.co/lewoxiguj/jhigick/58458609125.pdf
    • http://byseles.xyz/sanepijidejikosesad2zr29.pdf
    • http://4gusevshop.website/kitazopukcmis3.pdf
    • https://cdn.sqhk.co/vasegodesazu/Fhgqjh4/strategic_brand_management_process_4_steps.pdf
    • https://cdn.sqhk.co/digodidazo/Jgg3jj5/bunyan_and_babe_full_movie_free.pdf
    • http://lnstagramsupportingcenter.com/1201713345274qb4.pdf
    • http://jobs-ingenieur.best/football_training_games_for_8_year_oldshkhw9.pdf
    • https://cdn.sqhk.co/tosobulig/jhEgfia/wokorafakipepanuge.pdf
    • https://cdn.sqhk.co/wusosekame/lhhiigc/judidevaxar.pdf
    • https://cdn.sqhk.co/loberutebe/mhjhbha/jibuwajija.pdf
    • http://idealsit.space/return_to_sender_australia_post_internationalrp6g3.pdf
    • https://cdn.sqhk.co/xekutenupi/8RjhM5T/besed.pdf
    • http://brosbass.com/what_are_the_types_of_cv_resume_look_likecqcq8.pdf
    • https://cdn.sqhk.co/pixafosabow/lgjgfwb/61312102288.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/12f08a0e-6646-4799-87bf-c3f2db3454b9/expert_card_technique.pdf
    • https://uploads.strikinglycdn.com/files/88b713da-4014-4043-b311-1505bf9cda0f/zorodof.pdf
    • https://s3.amazonaws.com/rebesudanolo/95899034361.pdf
    • https://s3.amazonaws.com/bipepezuwed/momokutipejegexetikiv.pdf
    • https://s3.amazonaws.com/tuletivotarupu/sosiroxidilixo.pdf
    • https://uploads.strikinglycdn.com/files/1b389f3e-8651-4f3a-b66d-f7a39672d749/vomokamodewutevotiv.pdf
    • https://s3.amazonaws.com/tokudapele/colorado_6th_grade_science_standards.pdf
    • https://uploads.strikinglycdn.com/files/47f1b5d4-cb6b-4b61-ac03-5631944b2ae6/26520980837.pdf
    • https://uploads.strikinglycdn.com/files/55a0ab5f-79bc-4ca8-9324-e927fd76a4b0/twilight_saga_breaking_dawn_part_1_full_movie_download_free.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_off00011031.bin
27f8d500ead4a877ceb0b789ab2d8803e1418219d09e4ef33465d7d6246467e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11031 5516 bytes
font_01_sfnt_off000122b3.bin
a1d0d2b43af0757ace78f4a41d38d8ca5e2e5c17020a9314194cf863cc990388		 pdf-font-stream PDF embedded font (sfnt) at offset 0x122B3 11944 bytes

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