Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef143279dc940ca6…

MALICIOUS

PDF

105.4 KB Created: 2021-03-18 19:32:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8dcba936257cc7c0ef2a98b05a9f96a8 SHA-1: 265ba8024fed392c70aaeba24a998d192b302b6f SHA-256: ef143279dc940ca6ed537811d42ce8c6f52093a528ae91185900a0164885bcfb
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF that contains an embedded URL pointing to a suspicious domain, identified by heuristics as a potential phishing or malicious link. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to 'Sandpani vyavasthapan in marathi pdf'. No scripts were extracted, but the presence of external URIs suggests an attempt to redirect the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://zajinet.ru/award?keyword=sandpani+vyavasthapan+in+marathi+pdf
    • https://cdn.sqhk.co/rajexizeba/gihhajg/popping_bubbles_dora.pdf
    • https://cdn-cms.f-static.net/uploads/4458838/normal_600e913ab29f2.pdf
    • https://static.s123-cdn-static.com/uploads/4409826/normal_5ff31ddfda275.pdf
    • http://idealica-uficialeitalia.website/aao_kabhi_haveli_pe_video_mp41xrzi.pdf
    • http://zunuruxeguxifi.mygamesonline.org/39767664828.pdf
    • http://foxilajat.sportsontheweb.net/zewotava.pdf
    • https://static.s123-cdn-static.com/uploads/4484154/normal_5fe5c5519887e.pdf
    • http://nazhivy.net/kowebeziredubaff9vk.pdf
    • http://madawuboso.sportsontheweb.net/immanuel_kant_books_in_hindi.pdf
    • http://trynon.xyz/blood_bowl_2020_roster_builderz59db.pdf
    • https://cdn.sqhk.co/jarixizotib/fgcghij/688680821.pdf
    • http://samekado.22web.org/broward_school_calendar_2020.pdf
    • http://itgermany.net/list_of_c_programs_asked_in_interviewk21ap.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://8aefc570-8454-48c3-bb63-d4d1067b7ce0.filesusr.com/ugd/5c9621_a18a82e306494f5fbe846b510c65f156.pdf?index=true
    • http://sibisewol.rf.gd/bengali_movie_annadata_full_movie_free.pdf
    • http://vaforapibasaw.epizy.com/come_back_to_sorrento_violin_sheet_music.pdf
    • http://borinalujid.epizy.com/lifixolemero.pdf
    • https://5071cc05-3fa2-46b1-b944-d2523ca4b51d.filesusr.com/ugd/62e2c1_34892f642a5544309171a89dd9f23db5.pdf?index=true
    • https://67389751-14cc-4ed3-b660-7ef7239e4cc3.filesusr.com/ugd/bb5584_9dd4e484b52349b5998084b7b981c99d.pdf?index=true
    • https://329f26c8-0235-4118-8622-173d264d9cf1.filesusr.com/ugd/221f3a_3fc8acd25c5e4979829efe06df2e32b0.pdf?index=true
    • http://pasifowon.atwebpages.com/easy_coordinate_graphing.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000121f8.bin
b30a8ecf1b0f1b7b2965bac688a36e64cfbd87d35e380fba2ecb9b1dda40f439		 pdf-font-stream PDF embedded font (sfnt) at offset 0x121F8 5516 bytes
font_01_sfnt_off0001349a.bin
2463bf3a63147ebfe66b7c8a27d04247dc55221240a4ec5d6e2886b502f51eb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1349A 9660 bytes
font_02_sfnt_off000155ff.bin
43c7098c24b69c2da33a9c13d293a046fd217ee64b68f38b97477007bb9ec3d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x155FF 22316 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.