Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aa888d8d748fa0e…

MALICIOUS

PDF

86.2 KB Created: 2021-03-24 01:12:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0aef30ebd9313a573ab31439b0d4115e SHA-1: 1b789dfeacc20c02ca0994f6f48864590d4b6a22 SHA-256: 2aa888d8d748fa0ea515dc4a72dbd4f1dcdc8ff9a7582014ad67918e41881fcc
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9990

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://druttle.ru/wix?keyword=worksheet+3.6+parallel+and+perpendicular+lines PDF link annotation
    • http://ilkertr.shop/project_management_software_free_reddit7ljin.pdfIn PDF document text
    • http://reawont.online/spoken_hindi_books_free_downloadoilpj.pdfIn PDF document text
    • http://vandify.com/mayrhofen_ski_resort_guide0dmz9.pdfIn PDF document text
    • http://fruit-citrus.space/bio_medical_waste_management_2018izee0.pdfIn PDF document text
    • http://lnstagram-blue-ticks.com/1386404214qujyd.pdfIn PDF document text
    • http://copriyghtconfirmed.com/graphql_android_kotlinfvgwv.pdfIn PDF document text
    • http://begdas.fun/dungeon_survival_android_guidedt9b0.pdfIn PDF document text
    • http://levantegroup.net/iti_marksheet_kaise_kareab4nm.pdfIn PDF document text
    • http://inostrana.com/47940039585vcbsz.pdfIn PDF document text
    • http://hugertely.xyz/how_much_starbucks_employees_makexma3x.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/16053477168.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/dikupakupigopuxeson.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/789337d3-0eb6-4592-ba84-08649f619d03/what_does_12b_dd_mean_on_w2.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/news_intro_video_template_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dde2e647-cd70-4b2b-a141-dd8c18ce144f/how_not_to_buy_maternity_clothes.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/english_to_gujarati_dictionary_offline_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/2000_mustang_gt_auto_vs_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/android_p_adaptive_battery_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8cb7ce6-496f-4e34-a3b3-524fa5b19754/the_best_keto_diet_recipe_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a982a375-abd6-44cc-9203-ddb144546c54/lowest_calorie_taco_bell_menu_items.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/resumen_del_libro_el_pequeo_vampiro_en_peligro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcf6d564-5abe-4e01-9ab5-847fb9b1bd24/what_does_the_nursery_symbolize_in_the_veldt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0a9ef69-7521-4698-935a-80d01376ca19/zivofipebejudovet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de175879-70ee-490d-b3a2-2674a202f71d/wepirafulinag.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD94 5588 bytes
SHA-256: ae8a014ab351e00de2849235a80f280352e88be823fbca0e8b602623d84a3787
font_01_sfnt_off0001109c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1109C 10888 bytes
SHA-256: 4d7073dda4c3b24812f580e3a1828ad2e5be9396f2716d0f858923341b8a22aa
font_02_sfnt_off000135de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135DE 16144 bytes
SHA-256: 44cbffb6a27fbc253a15a5710b92d7937136999dfebcc99cf82b06c5cb3c71e6

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