Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0cbe748ebb6fc87…

MALICIOUS

PDF

82.9 KB Created: 2021-03-06 09:45:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f317ce6c5117ed1f4d18bc0ab1e7ddb7 SHA-1: 8a8380d9309c239b57a9d68e23dc8b3ddde84fa4 SHA-256: e0cbe748ebb6fc87d43cd33b43bdea10e2c5ddbbfa7c2b52edf1f7a7d47a7e55
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 0.9998

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://kuzutuzo.ru/wix?keyword=fractional+equations+worksheet+with+answers PDF link annotation
    • https://cdn.sqhk.co/giwitosak/hfihOSP/easy_baby_cross_stitch_patterns_free_printable.pdfIn PDF document text
    • https://cdn.sqhk.co/liripudeb/VkhidLd/bubble_champion_game_download_uptodown.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/kijelopazekune/blowing_raspberries_sound_effect.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/wuwigifakixelemetapiditup.pdfIn PDF document text
    • http://fopovixiwi.epizy.com/equipment_maintenance_report_format.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/dozepovi.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/zugotowemuloliroxope.pdfIn PDF document text
    • http://gatoruvizuzil.epizy.com/fate_rpg_skills.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/murachs_python_programming_2017.pdfIn PDF document text
    • http://kukejisagev.epizy.com/best_logo_maker_app_for_android_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/can_you_get_nfl_sunday_ticket_on_spectrum.pdfIn PDF document text
    • http://netixino.epizy.com/whirlpool_extra_fridge_shelf.pdfIn PDF document text
    • http://wubogijogazerew.epizy.com/don_bradman_cricket_17_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/ielts_speaking_questions_with_answers_free.pdfIn PDF document text
    • http://xixakoju.rf.gd/zogopewu.pdfIn PDF document text
    • http://kesotufujurox.rf.gd/new_bhakti_dj_song_2018_video.pdfIn PDF document text
    • http://webubekesivamuf.epizy.com/aspirin_primary_prevention_guidelines_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/attack_on_titan_season_3_episode_23_manga_chapter.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/acetate_film_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/97148010947.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000108e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108E0 5124 bytes
SHA-256: b3cb5cb04afd46b205c34ebe9f0ee597dbf0e3697632882edebcaae142a5fb2e
font_01_sfnt_off00011a5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A5E 10460 bytes
SHA-256: 4c4caf7a5335ab2155023148f68c40288a7d51438ee422427515a2f7e6a0e205

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