Malicious PDF — malware analysis report

Static analysis result for SHA-256 79bef380b1362655…

MALICIOUS

PDF

84.2 KB Created: 2021-05-23 01:15:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: eb0713b2e9ca7ed060e86388aa147d00 SHA-1: 71e47c41636effe8c13081b6b526c7eb92de0cd3 SHA-256: 79bef380b1362655899c05954ce5685038698fb3ecba100d729890c55960bd7c
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/strik?utm_term=como+se+llama+el+lugar+de+culto+del+budismo PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/c3da1a00-1df8-4b97-b634-ec92d8e8e2b6/38899032789.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9c88a40-175a-48b3-93a5-4fa014ffc280/how_to_work_dish_network_remote.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/855d0dc1-363d-4c81-9f11-541c9c130f1d/global_community_definition_in_sociology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02c565e0-54aa-4112-ac8c-0bf4d8230d16/zowifap.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/8547246861.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c94dbd4-6820-4339-8b48-8bca4c868c1c/15783223019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/addf9d83-bd71-4df4-8eab-ce04237c7ed1/16213108013.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1768738-8ba9-4198-8077-fc1734e0dda8/which_river_turned_to_blood.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4164f60-e53e-442c-a96d-1a572e8a16fd/61568661489.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29297c73-a3ee-4a49-b93b-e1995d04a9ba/nosupu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5d70c46-9bc1-46d5-bcdd-4df25cf7843c/google_machine_learning_engineer_salary_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60707036-c961-4374-bcda-b0d3fa12da65/subway_restaurant_menu_prices_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e65c16b1-5d9f-4d4a-a88d-5adb7e2f546b/gisimilom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5ca8c1e-e964-41dd-8505-25c8349fcfe0/boiled_egg_white_diet_for_weight_loss.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxegu/12560039340.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d17909b8-8211-4164-b341-27549b4d95f1/the_south_african_vegan_cookbook_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59866ae1-4f83-41a1-8ed8-fa4ae6ac44ee/how_to_connect_rca_cable_with_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fba56ee-95ea-48d9-85a1-fa8891cad77e/call_of_duty_ghosts_highly_compressed_pc_game_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54e17cf2-08d9-44e8-bda2-90e184cedc14/how_to_find_the_perfect_dog_breed_quiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0265ed6-9178-436b-8ddc-c3eb23c2f9e0/jane_austen_quotes_about_books.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9657ce2c-6bf3-4e21-b6e9-3b963f55460b/analysis_of_the_open_window_by_saki.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD52 5196 bytes
SHA-256: 4f79d01e00eefb3961b1e8be9454465e8997c50449685cbef2555aa651828a05
font_01_sfnt_off00010f02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F02 11152 bytes
SHA-256: 6dbfac5783f543527902aeea08ae41524eab722bbdb44977ec301092ede372c4
font_02_sfnt_off0001336a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1336A 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3