Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa4e289bb2d08686…

MALICIOUS

PDF

106.6 KB Created: 2021-03-06 18:42:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4696acbf3d9759a162992b510c359484 SHA-1: 811ce94527414d4a6f020fb840f4372d5095bbbb SHA-256: fa4e289bb2d086860c432f59ad12e058eb077d5846771a2828824fc8200ff321
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 0.9992

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://xajibur.ru/strik?utm_term=daniel+hart+power+electronics+chapter+4+solutions PDF link annotation
    • http://levantemosaic.com/michael_vey_book_3_summaryz0ioi.pdfIn PDF document text
    • http://bagedejatobino.22web.org/12666717971.pdfIn PDF document text
    • http://rabisoluvilava.iblogger.org/lonely_together_audio_song.pdfIn PDF document text
    • http://tikovg.xyz/how_to_cite_an_online_news_article_apa_stylefeusn.pdfIn PDF document text
    • http://cpskras.website/fogelewune4mm6i.pdfIn PDF document text
    • http://madewithsunshine.com/959997434690yqg5.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/luropi/sazezawuwaterer.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/paveginujenoda.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/estenosis_del_acueducto_de_silvio.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/xilexepapoludin.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/gatax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68911773-c5ea-4c0b-92cb-fe15aab320b3/18652189154.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/377faabc-9448-4a32-96a2-9e151c8d2d0e/xoxubokenojetevixefir.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/endless_space_2_starter_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/robert_half_online_time_reporting_login.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe97af56-b574-410e-9d47-12eb4564ce04/3_examples_of_project_management_tools.pdfIn PDF document text
    • https://s3.amazonaws.com/tumuzu/wastewater_treatment_plant_operator_certification_study_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4da2e328-3137-4e1e-abc2-131c52e70b1d/subimadinuvujoforanosow.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/filawo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e12f55e9-8161-49eb-b117-de6fbfae7f1e/angle_relationships_and_triangles_worksheet_answers.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12507 9232 bytes
SHA-256: 19622fd952a0aee5e5570f55b5befef5827196298b7ed5561dab39b17efdec5d
font_01_sfnt_off00013f55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F55 3768 bytes
SHA-256: 55f3ee1ce620fe19bab2385249125f413b1901e2743a55e7a56e18f1259a58e6
font_02_sfnt_off00014ce9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14CE9 5200 bytes
SHA-256: ab65856377d0e6084438ed280a3d558951a0b2ba6675c722ae791132f157b211
font_03_sfnt_off00015eb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15EB0 11524 bytes
SHA-256: 62540e4c672526de89b30ef1398a84e7a512d4fc46f37d535b695b9061c0b848
font_04_sfnt_off00018648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18648 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501

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