Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8f01efc24830d72…

MALICIOUS

PDF

165.5 KB Created: 2021-02-12 10:08:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: a098f195995267f1570db7eb2b428f37 SHA-1: 5b67888733eff8e11647d25d5d58fd5a9abc1f88 SHA-256: d8f01efc24830d72f2e6069e987bb5b34aa3dc1b12316bd5fca623adc0e655c3
96 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is malicious and a phishing attempt. The embedded URL https://leonvi.ru/wb?keyword=bonjour%20itunes%20%20windows%2010 likely serves as a lure to a phishing page. While no scripts were explicitly extracted, the PDF structure and ML classification strongly suggest malicious intent, likely related to credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wb?keyword=bonjour%20itunes%20%20windows%2010 PDF link annotation
    • http://yachts-4-sale.com/195129679275h3iy.pdfIn PDF document text
    • http://skidki-day.site/video_status_song_tamilrs4kk.pdfIn PDF document text
    • http://wixiziz.iblogger.org/nigofemizevozofuk.pdfIn PDF document text
    • http://podcard2020.site/install_android_os_for_pc_freeoxheg.pdfIn PDF document text
    • http://heleogose.online/bewemabokeduzijilitobozam3wrbj.pdfIn PDF document text
    • http://verenica.net/zinobetofusemudefolqmjaw.pdfIn PDF document text
    • http://pornbustyvids.com/kannada_movies_websitero1x5.pdfIn PDF document text
    • http://presentinsta.online/vowobusinotokojx7wpx.pdfIn PDF document text
    • http://joblanc.xyz/identify_radius_and_diameter_worksheets8md2i.pdfIn PDF document text
    • http://toxinudi.22web.org/tamil_calendar_2017.pdfIn PDF document text
    • http://lnstagramverifiedbadgeshelpcenters.net/lebara_recharge_offersvaxma.pdfIn PDF document text
    • http://udilische.club/chingamasam_vannu_chernnal_dj_songiv15w.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zusagijumetuze.epizy.com/supujagam.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/aisi_2012.pdfIn PDF document text
    • http://lapekekefexe.rf.gd/tegomupirawopirewup.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/nier_automata_piano_collections_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/lowebemuwojiso/13900887705.pdfIn PDF document text
    • http://mujijebal.epizy.com/46166593652.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/3499172333.pdfIn PDF document text
    • http://wadokeg.epizy.com/zadaxasud.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC4 114528 bytes
SHA-256: 2d7f7485c41b3b3e44b0cf866e866da5d64c3d48a56463a27fde09d2fc79d65c
font_01_sfnt_off00024e71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24E71 4988 bytes
SHA-256: 5e98131136f4c71e4ed90c345dc360ae5d9fec7b3139131566ba162727805b14
font_02_sfnt_off00025f98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25F98 11104 bytes
SHA-256: 78f9f4885ff077679f52ca90759e51ba0c0b17c62c4e2a63b1ca40ecbec365d8

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