Malicious PDF — malware analysis report

Static analysis result for SHA-256 36d6e2fa0b61c925…

MALICIOUS

PDF

75.7 KB Created: 2021-06-11 22:09:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c92a3a8c5b8f21155daed7fd54ace45 SHA-1: c7d524464639c0e530f1375251df15df7f1073b7 SHA-256: 36d6e2fa0b61c9255779f62d80306fb286a94388c4c9284c7f5a78a139bcf0db
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that promises free Bollywood movies, a common lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious 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://nomylo.ru/pbw?utm_term=best+websites+to+watch+bollywood+movies+online+free
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/c384f643-7703-465b-a245-11304fa1a92f/35232465251.pdf
    • https://uploads.strikinglycdn.com/files/73608f72-caf4-434b-a81b-f864a82e2370/59820819281.pdf
    • https://uploads.strikinglycdn.com/files/49cbe9e4-2d98-42f7-8b6d-9fa717792eb9/grohe_kitchen_faucets_repair.pdf
    • http://nagomax.pbworks.com/f/deed_of_absolute_sale_vehicle_sample.pdf
    • http://vogituvu.pbworks.com/f/amapiano_packs_download.pdf
    • https://uploads.strikinglycdn.com/files/4dcf3311-c04f-4cc2-abe8-2b94e579ee14/21249616909.pdf
    • http://favixose.pbworks.com/f/rolling_stone_top_500_albums_2020.pdf
    • https://uploads.strikinglycdn.com/files/634cf018-c1da-49cf-a967-7b7d629e9e67/tagosikedipasilo.pdf
    • http://gapufipi.pbworks.com/f/ubuntu_server_installtotext.pdf
    • http://farejutotej.pbworks.com/w/file/fetch/144683646/pokilaf.pdf
    • http://samunoge.pbworks.com/f/terjemahan_file_inggris_ke_indonesia.pdf
    • https://uploads.strikinglycdn.com/files/b665aa67-1d54-4aa0-b4fa-786ce229d34f/21118452896.pdf
    • https://uploads.strikinglycdn.com/files/aad19cbe-290f-4d29-9fd4-cc2c96895672/how_to_load_a_porter_cable_fn250sb_nail_gun.pdf
    • https://uploads.strikinglycdn.com/files/0dc900b7-1095-4a79-b96e-79284cc75627/is_a_peloton_really_worth_it.pdf
    • http://jirofuwaso.pbworks.com/w/file/fetch/145150611/80502957983.pdf
    • http://xutosop.pbworks.com/f/nigojevirifi.pdf
    • https://uploads.strikinglycdn.com/files/7881be00-d013-4955-9af1-7fa493d72b74/examen_muestra_unam_2018.pdf
    • http://rimogeto.pbworks.com/f/download_game_pes_2020_ppsspp_iso_android.pdf
    • https://uploads.strikinglycdn.com/files/aaa3c97e-7576-48b5-bd7e-b1da266cb527/arduino_nano_33_iot_accelerometer_example.pdf
    • http://moxulolo.pbworks.com/f/irregular_verbs_quiz.pdf
    • http://bekiravetad.pbworks.com/w/file/fetch/144788403/best_pre_workout_for_weight_loss_female_gnc.pdf
    • https://uploads.strikinglycdn.com/files/a5428836-355b-4119-a971-48c3ec44cb2d/festival_holiday_declaration_letter_format.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_off0000e8f0.bin
22c41bab39edd202ce1157614dab0f5eda643f80481a7379ac0b3ff6f693af6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F0 5704 bytes
font_01_sfnt_off0000fc4d.bin
35f49e6741c77e7080af7b8c40b5e86ed2bdaa908a8f9bfc1495850f39be0160		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4D 10916 bytes

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