Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff0cf9fa3d9a5bcd…

MALICIOUS

PDF

195.0 KB Created: 2021-03-07 23:07:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 65b90cdb2cea0f945be287d9b3d8ec0c SHA-1: 53c7cfc317d22695afb047460e262e6e725c291d SHA-256: ff0cf9fa3d9a5bcd85bb6f387badf52b4d92f902538d47ef9942146bb2c8c473
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-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://midufefew.ru/aws?utm_term=law+of+trust+and+equity PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4412902/normal_5fe46fe86872c.pdfIn PDF document text
    • http://contact-git.top/math_worksheets_for_grade_5_exponents7uhxb.pdfIn PDF document text
    • http://goldstein.capital/football_manager_mobile_2018_apkh2ja3.pdfIn PDF document text
    • http://zathkatow.xyz/drake_we_made_it_downloadc2qny.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393641/normal_5fd7adc08be19.pdfIn PDF document text
    • https://zegasapazenavu.weebly.com/uploads/1/3/5/3/135326880/sojekef-mivonagivul.pdfIn PDF document text
    • https://retumitoratosu.weebly.com/uploads/1/3/4/2/134234586/45e9e19fb548.pdfIn PDF document text
    • http://italia-doc.fun/interesting_answers_to_what_s_upu70mf.pdfIn PDF document text
    • http://rabota-plus.club/xufokejuzesomupotobcwads.pdfIn PDF document text
    • http://balifruit.com/crime_and_punishment_study_guide91xje.pdfIn PDF document text
    • http://lienforkid.com/managing_cultural_differences_moranuh83y.pdfIn PDF document text
    • http://eduha.online/social_inequality_9th_editionla39n.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496571/normal_5fe31d1f3e465.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402294/normal_5fe07dd29ab7f.pdfIn PDF document text
    • https://pesasujax.weebly.com/uploads/1/3/4/8/134882000/napafojogexob-sufaputuzi-sexiratuzojite.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/fosagoba/gameboy_color_emulator_android.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/scissors_paper_cutting_template.pdfIn PDF document text
    • https://a2c67b61-a01d-4053-b7ad-f1487bca8054.filesusr.com/ugd/24853a_0bc8a1a8c6c24ddd8a583f99bae17a8b.pdf?index=trueIn PDF document text
    • https://237a2310-9536-43ad-add1-fe73b840a51a.filesusr.com/ugd/8b319d_e45952dd5dee496e87a9e3135623996b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zalomi/nhs_nurses_uniform_shoes.pdfIn PDF document text
    • https://s3.amazonaws.com/jukezeluf/22980135088.pdfIn PDF document text
    • https://f3b8d348-8566-49c9-a9f8-a2c3b9e1bc8e.filesusr.com/ugd/f1c748_a64c0ba2fa304219bf4529883c51c906.pdf?index=trueIn PDF document text
    • https://ec5c17a1-061e-4a2c-a9e6-b3561ba71229.filesusr.com/ugd/299074_84be44432f7b48b28ccd92a18de8e8a5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mipeboro/what_is_the_best_standing_desk_treadmill.pdfIn PDF document text
    • https://5a4e7950-e122-4b3c-9cf7-894e7f5b1216.filesusr.com/ugd/76aeb6_a70026358e26442dbd8c82e4ff5f6edf.pdf?index=trueIn 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_off0002c467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C467 5132 bytes
SHA-256: 65f1fd0e288798bd2dc865478da62d1fc203e2bcb72675790c0699756b792ad8
font_01_sfnt_off0002d608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D608 11672 bytes
SHA-256: 72ae69dcbaf7a796ac850141aa387441699aee9ccf9d1c07c8c5ac3d83f0c50a

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