Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf8fc60e7bc7e8ad…

MALICIOUS

PDF

92.3 KB Created: 2021-04-06 22:53:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9c1d499c52f9c0fb97c10fa95b86c2b2 SHA-1: de68dc873071844abe8387fa49adcd151989e515 SHA-256: cf8fc60e7bc7e8adaa42ac3ee6ac40e8e37139ac59075c85c7a1fa1d853db13d
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 0.9983

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://golowaki.ru/123?utm_term=akram+ali+ringtone PDF link annotation
    • https://cdn.sqhk.co/rufigukuj/xji0hiR/40542088439.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416319/normal_60202f2a37ba5.pdfIn PDF document text
    • https://cdn.sqhk.co/xumelesep/ij0ib4c/8744358186.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483362/normal_604fa6c342860.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416131/normal_605392dfd0904.pdfIn PDF document text
    • https://cdn.sqhk.co/zogowefu/ksNjit3/mabinalaf.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzaxepigi/hcJ4ii2/filling_deep_holes_in_plaster_walls.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384029/normal_5fdfa8c74a675.pdfIn PDF document text
    • http://mekujoviwe.mypressonline.com/the_princess_diarist_carrie_fisher_audiobook.pdfIn PDF document text
    • https://cdn.sqhk.co/sozimelizak/cgiihfz/biografia_de_andres_caicedo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://nolewepanuvaxup.epizy.com/louise_hay_guided_healing_meditation.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/rarudak.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/calculus_with_analytic_geometry_simmons_ebook.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/bogelamezulosexazasev.pdfIn PDF document text
    • https://s3.amazonaws.com/gajakelegeza/62929851105.pdfIn PDF document text
    • http://gamupuzif.epizy.com/gaxakegavilanilitamosuji.pdfIn PDF document text
    • http://sasukagisodubex.onlinewebshop.net/65226320505.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/green_grass_background_hd_pic.pdfIn PDF document text
    • http://jutasasof.epizy.com/dusokijip.pdfIn PDF document text
    • http://walofasokim.epizy.com/juxemiroguwakowerebok.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/m_letter_whatsapp_status_video_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/83801337605.pdfIn PDF document text
    • http://tebaputazaxuva.myartsonline.com/27538407766.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/school_improvement_plan_template.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B4 4880 bytes
SHA-256: aebadb3a3d7807654914dc46312ac55a488a91db5953932eceaa8b8ba7a1a1ea
font_01_sfnt_off0001043a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1043A 10912 bytes
SHA-256: e42ec410044a2d5cb849f8687fd12ed38ed9ba0715e1691c4c15bbd8b316299e
font_02_sfnt_off000129b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129B3 17160 bytes
SHA-256: 500b0cfc4e262ecb738ddec00eb55b58c1c73aa07b5febbca177d1bb948e392b
font_03_sfnt_off000142b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142B4 10636 bytes
SHA-256: ca7390da09914b5745091d22dc3eb1dda39409eaee4bb37d751093b6e02cf815

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