Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4330b569e60cd96…

MALICIOUS

PDF

71.5 KB Created: 2021-06-01 03:00:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: e09e44f3e974a0a0f8bcde9f10e97b8a SHA-1: 96a876343576a4a58cb992307105bdb5ecf0103b SHA-256: d4330b569e60cd9613b27c98551c7c3a29f5d73462ab803c5f814681a8b83cac
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a domain that appears to be a phishing lure, attempting to trick users into downloading content related to 'Avengers theme song download'. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it may leverage embedded JavaScript for malicious actions, such as redirecting the user or initiating a download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://coretry.ru/pbw?utm_term=avengers+theme+song+download+mp3+pagalworld PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4410989/normal_5fdfd4f531118.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379720/normal_600a1f4107267.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4485152/normal_60b0857130d52.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376105/normal_5fcca83fd4c45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481839/normal_604d219a3cba1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498404/normal_60050672b9788.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387226/normal_5fc8f0795659b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380213/normal_5feb8a4d4cfb7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402933/normal_5ff4dcfa3dff0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384484/normal_5fccbf9800cb2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474987/normal_5fd1fc92b17d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402014/normal_6022bf8c1dc83.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465949/normal_6001ccd939948.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386087/normal_606b1ce1da057.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367304/normal_5fcd90a36e75f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426697/normal_605d89bed4b0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489977/normal_606caa3d6c8f6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mifimoruzuwo.pbworks.com/f/9004960338.pdfIn PDF document text
    • http://wuranosa.pbworks.com/f/26263625539.pdfIn PDF document text
    • http://xedidovetaw.pbworks.com/w/file/fetch/144416892/adanga_maru_tamil_movie_download_tamilgun_hd.pdfIn PDF document text
    • http://midevodimu.pbworks.com/f/how_to_say_please_find_attached_in_german.pdfIn PDF document text
    • http://negovijalulu.pbworks.com/f/ruvizavorebuda.pdfIn PDF document text
    • http://xojifot.pbworks.com/f/how_to_add_friends_on_switch_minecraft.pdfIn PDF document text
    • http://degenazi.pbworks.com/f/how_do_you_get_minecraft_java_for_free_on_android.pdfIn PDF document text
    • http://zemenifinabe.pbworks.com/f/do_covalent_bonds_form_molecules.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_off0000d4dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4DD 5680 bytes
SHA-256: 9ee9c80b40f6406c230dd4dd897561050298557fdfa8607e1ab40e5754213c87
font_01_sfnt_off0000e821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE821 11716 bytes
SHA-256: 1c5acad7fc5dabd97c5b0b952a4903addbbe204395f7d6baf2b17f897d03bd85

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