Malicious PDF — malware analysis report

Static analysis result for SHA-256 ede5e3dddce529a2…

MALICIOUS

PDF

90.2 KB Created: 2021-04-03 03:50:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 059cc785a7b5e3eab11d6f4f5ce12690 SHA-1: 72a07fbc350cdb63c7a423a638038f5c9573ecda SHA-256: ede5e3dddce529a2534be9a1e472f8826e1ce590b8567570e2da36bc0f5063e4
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely serving a phishing or malware payload. The document body, though heavily obfuscated, contains references to 'Tom Clancy new book 2021', suggesting a lure to entice users to click the malicious link.

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://nipisod.ru/strik?utm_term=tom+clancy+new+book+2021
    • https://cdn.sqhk.co/velabolo/rfSPxhi/kejun.pdf
    • http://kidufamipowanot.mywebcommunity.org/how_to_enter_bios_setup_in_hp_pavilion_dv6_laptop.pdf
    • http://kavelokafozi.medianewsonline.com/22399400696.pdf
    • https://cdn.sqhk.co/movozuba/QiiWghc/hair_colour_theory_questions_and_answers.pdf
    • https://cdn.sqhk.co/mamidusidozu/yjaQogj/82320545677.pdf
    • https://cdn.sqhk.co/junikesiza/wihgfhi/skip_bo_card_directions.pdf
    • http://vosojivaru.mypressonline.com/93479053206.pdf
    • http://nopotaz.medianewsonline.com/29966734379.pdf
    • http://vugekowuzujed.scienceontheweb.net/how_much_weight_will_i_lose_with_gastric_sleeve_calculator.pdf
    • https://cdn.sqhk.co/besogevipadi/8gfgdLr/99266986741.pdf
    • http://taxokijoba.sportsontheweb.net/algorithme_exercice_corrig_1ere_anne.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/7cc4012d-cb16-4c37-a251-e8515ed0d7d6/cuando_se_puede_viajar_a_colombia_desde_espaa.pdf
    • http://xufolat.atwebpages.com/acofp_inservice_exam.pdf
    • https://uploads.strikinglycdn.com/files/bb8d6c07-537b-4ca0-a180-2d9101294997/swann_smart_security_system_3k_series_setup.pdf
    • https://uploads.strikinglycdn.com/files/37fb2310-cce4-4a9f-ba9c-fc70f5b947a1/68926561097.pdf
    • https://uploads.strikinglycdn.com/files/f8739b96-9259-4b9f-80ac-d6e43857220f/peavey_bandit_112_solo_series_scorpion_equipped.pdf
    • https://uploads.strikinglycdn.com/files/662f2e77-8514-4aba-8380-b2adddd280d2/zinumad.pdf
    • https://uploads.strikinglycdn.com/files/d75a95c0-1a95-4ee8-9b48-ff9b667e49ad/what_is_the_name_of_simbas_daughter.pdf
    • http://ferodibev.onlinewebshop.net/zunakapefenivakejut.pdf
    • https://uploads.strikinglycdn.com/files/e935ebba-5d34-4c7a-9e51-c62b1239ff54/hp_pavilion_dv6000_screen_price_in_nigeria.pdf
    • https://uploads.strikinglycdn.com/files/8c653f66-d9b9-4ec4-866e-08c839bc7453/hp_3050_printer_driver_for_windows_10_64_bit.pdf
    • http://farovosodiwes.atwebpages.com/university_of_washington_seattle_campus_map.pdf
    • https://uploads.strikinglycdn.com/files/c3fe4968-c3e2-4570-bbc8-bbb92f4f7425/suzurokovekukobiti.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_off00012175.bin
0b5474b8662fcd39aa78cc396cebeefd304731fa87d63df188a1afaadd81c9fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12175 5344 bytes
font_01_sfnt_off000133ba.bin
82fb7ddeeb75471c5cdb294b490c43ed5f24dc13c9b5c8cd9ce9da5a344e8819		 pdf-font-stream PDF embedded font (sfnt) at offset 0x133BA 11800 bytes

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