Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd465444ad72f4f2…

MALICIOUS

PDF

79.3 KB Created: 2021-04-09 09:56:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 677e01d9c4f87c617e15162bf8c12842 SHA-1: 11ddb0383351500812e6f680336ffc88fafe378e SHA-256: bd465444ad72f4f2b251afcfdaaa2b0bafae88b1d721714159e7ea00713d4b12
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 0.9998

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://fokemale.ru/strik?utm_term=top+paw+dog+crate+assembly PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4407991/normal_5ffa2d8b2809d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493545/normal_60623db973b3f.pdfIn PDF document text
    • https://cdn.sqhk.co/lojibuwe/aico0yS/20730649955.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374542/normal_60122b596112b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424376/normal_604fd1951979f.pdfIn PDF document text
    • http://rigoditibalun.mywebcommunity.org/how_big_of_a_room_will_12000_btu_cool.pdfIn PDF document text
    • http://dozibasiwoman.iblogger.org/the_history_of_photography_book.pdfIn PDF document text
    • https://cdn.sqhk.co/ronuwimo/fjij1p2/ocotillo_wells_thanksgiving_2020.pdfIn PDF document text
    • http://kawonipedo.22web.org/97073810885.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/78dd4c3c-c927-4286-b23a-049359b45e2d/how_to_set_up_a_kindle_app_for_a_child.pdfIn PDF document text
    • http://wujagenak.atwebpages.com/the_hobbit_3_full_movie_in_hindi_dubbed_download_480p_filmywap.pdfIn PDF document text
    • https://s3.amazonaws.com/furunumaroxun/das_wunder_von_bern_alle_spieler.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4225aab-4ec8-427f-b030-46533eb61456/real_book_jazz_standards.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/ms_sql_server_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/briggs_and_stratton_vanguard_18_hp_repair_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/055e56f4-e1d2-4e54-a675-54abea47cb35/28268190929.pdfIn PDF document text
    • http://jokipuzovorije.epizy.com/define_yourself_answers.pdfIn PDF document text
    • http://liwununigu.epizy.com/58614795894.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/meveserilozak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc211e79-5499-4230-8277-651025cab8ed/is_city_of_bones_appropriate_for_12_year_old.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_off0000f725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF725 5676 bytes
SHA-256: 01210e4c68032f99682fa6a594f393d482c92bfa055f61225848fc6c2077b8f7
font_01_sfnt_off00010a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A72 11036 bytes
SHA-256: 64ded13efb2966f3493c4f9ed3f77114005ce9d9b99d84fabd7a74c4c0f7e5df

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