Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb8f9eafe1c91cf7…

MALICIOUS

PDF

78.8 KB Created: 2021-03-16 01:22:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: f815cb69fcc652004219cf610dd0b370 SHA-1: 5dcc9a8d111c7116a4dd378d777e2e87a9839adf SHA-256: bb8f9eafe1c91cf7e3760cbfbe9168334bd1ca7639dc01b8d4f093e6ed80248b
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 0.9964

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://baarspo.ru/strik?utm_term=what+should+i+major+in+for+cyber+security PDF link annotation
    • http://gukimunejorupod.iblogger.org/zalovejalevozedosabadipe.pdfIn PDF document text
    • http://gezilobogobig.22web.org/video_player_html_template.pdfIn PDF document text
    • https://cdn.sqhk.co/xesagomi/4CEhcF5/94474496238.pdfIn PDF document text
    • https://cdn.sqhk.co/tovozovuzedu/jjVWHjd/earn_to_die_2_exodus_part_2_hacked.pdfIn PDF document text
    • https://cdn.sqhk.co/nulegudup/curhbgf/40601686915.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/v6jfHWw/cpr_call_blocker_v5000_setup.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fac83f2-bc4d-44f9-9fbb-d31799fa9d11/siemens_plc_programming_tutorial_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/mexizelinapak.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/ragnarok_eternal_love_guide_crusader.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/34335973766.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/8252482939.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/kuribamalukivuzosaf.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/24942870412.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cd5fafe-c93c-4b5f-a630-1a1aaa5b9141/13420158523.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/operaciones_combinadas_fracciones_6_primaria.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/gegasagapajade.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/sekinisejivi.pdfIn PDF document text
    • http://mujubelajuzuj.rf.gd/crystal_report_server_name.pdfIn PDF document text
    • http://denotepisijolib.rf.gd/36587689332.pdfIn PDF document text
    • https://s3.amazonaws.com/tuletivotarupu/tangstar_science_microscope_parts_crossword_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/sazuxoxozovamena.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/473a5254-aaac-4c08-b302-03248f09abae/procare_replacement_humidifier_filter_pcwf2.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/how_to_use_the_lowrance_hook_5.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/japeke.pdfIn PDF document text
    • http://biligisagazo.epizy.com/carrom_board_rules_in_english.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1400c421-2536-491d-a3cb-6597480deaa2/how_to_clean_a_rival_crock_pot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45b9882e-7de2-430e-85b2-4c4c61ad39f5/munavezalajefifodobiv.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/texinanuvejozapugo.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_off0000f401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF401 5592 bytes
SHA-256: 4b80c64604a79b5c42e78e33769f7edac15a8cf67a6af20682c7c457db95c115
font_01_sfnt_off000106ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106EC 11316 bytes
SHA-256: 9bf969137645a5730da2a69ef994c3ce4f9aa5cfbc961d80b4b9cc196c524b56

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