Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d21424f3b7599dc…

MALICIOUS

PDF

78.4 KB Created: 2021-03-29 17:09:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5a5637f1ac37b6feddee8cdebdb92a2a SHA-1: df00decf47516ec85ca9eb18f727194aa822573b SHA-256: 4d21424f3b7599dcdafc8c0709471b24ff4857aee9e2d4eca389579522f197a7
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing site, disguised as search results for a blender recipe. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of external URIs and the overall structure suggest a phishing or credential harvesting attempt.

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://ponafet.ru/strik?utm_term=ninja+chef+blender+soup+recipes PDF link annotation
    • http://lollipopa.online/xunefudezuriganuvivedc8ej.pdfIn PDF document text
    • http://uspex22.online/evangelium_vitae_definition93xyg.pdfIn PDF document text
    • http://dewisazovuvoxi.mywebcommunity.org/catalogue_sino.pdfIn PDF document text
    • http://tryplafond.xyz/riello_burners_not_firingjqsuu.pdfIn PDF document text
    • http://silkhfig.bid/how_to_program_chamberlain_keypad_model_66lcjbz13.pdfIn PDF document text
    • https://cdn.sqhk.co/mokopizel/f8GidHw/62781623212.pdfIn PDF document text
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdfIn PDF document text
    • http://sovaxalute.22web.org/41772878218.pdfIn PDF document text
    • http://rubisteq.online/how_do_i_write_a_career_development_plan_for_myselfblckt.pdfIn PDF document text
    • https://cdn.sqhk.co/mogujawogo/GHihyha/crowd_control_pepper_spray_for_sale.pdfIn PDF document text
    • http://policyhelpcenter.com/path_to_glory_40kkm2j9.pdfIn PDF document text
    • http://salleapp.xyz/cie_a_level_organic_chemistry_notesu1ec6.pdfIn PDF document text
    • http://avtovishki-msk.ru/gunship_battle_helicopter_mod_apk_latest_versionrpwzb.pdfIn PDF document text
    • https://cdn.sqhk.co/nowonipewo/shbehhp/music_identifier_app.pdfIn PDF document text
    • https://cdn.sqhk.co/mekaxosur/hedx260/72869340571.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xuvekixofeku.onlinewebshop.net/rosuxinitofagiwo.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/cute_baby_girl_dance_status_video.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/4_ring_binder_hole_template.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/ruluporipaxogorera.pdfIn PDF document text
    • http://gevovedejege.epizy.com/fizafajolafa.pdfIn PDF document text
    • http://dejugatifug.rf.gd/71629956741.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/55360949262.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/fitiputuzuxawuzetuvanepad.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_off0000f4b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B2 5428 bytes
SHA-256: 2de61c852fef5782bea6b8d48936b26d991991efe2b31e3c9b38486cfb15713c
font_01_sfnt_off00010725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10725 10844 bytes
SHA-256: 0a1a0884bb0880124320801474d4178c7be5cfa0556bd32c63710b3665c305ba

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