Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3e6460b5b330f0c…

MALICIOUS

PDF

68.2 KB Created: 2021-03-24 22:25:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 53bed5517f456f5551232571670a043f SHA-1: ab15fb2147439b7c8289f45be3e13ad843e1449c SHA-256: b3e6460b5b330f0ca22ea69eb66c178a7105c5f83a379b712c1fed9cf675e582
104 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that, when clicked, likely leads to the download of a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent, and the presence of a 'download' button heuristic further supports a phishing or social engineering attack. The document body, though heavily corrupted, appears to be a lure related to a product manual.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://botokaw.ru/wix?keyword=crock+pot+smart+pot+model+5855+manual PDF link annotation
    • http://dalidusiz.mywebcommunity.org/distillation_column_piping.pdfIn PDF document text
    • https://cdn.sqhk.co/vobilurerire/jeibhhC/26417888483.pdfIn PDF document text
    • http://nukapag.getenjoyment.net/16500901254.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445749/normal_600dc7a70678d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366011/normal_6026caa86eb16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401692/normal_6052cd1d976f3.pdfIn PDF document text
    • https://cdn.sqhk.co/neguvobipa/fiaigTY/80806363688.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410006/normal_5fd141a29f1f0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476432/normal_5fcc230561b32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469106/normal_5fd1e464ec872.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_6051b07d5c34f.pdfIn PDF document text
    • http://gubuxuk.scienceontheweb.net/administracion_de_recursos_humanos_snell_bohlander_16_edicion_descargar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427273/normal_5fd0b7c2505dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497666/normal_5feb02cb33531.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxaletadi/E5ieWbn/cut_and_paint_mod_apk_happymod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376612/normal_5fc7723890bb8.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/3iguCOr/fekulewilogojekasixogof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456378/normal_605271b17013d.pdfIn PDF document text
    • https://cdn.sqhk.co/sekijebasazi/ewhbjj1/baar_baar_dekho_full_movie_hd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd3c3610-5e33-47c4-b1a6-e9e4ddfd100c/ea_sports_ufc_2_pc_requirements.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f2617f4-84bf-4ab7-9615-1a6b478c4c82/20858043404.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce83ee6e-56e5-4e19-b98e-2023134f9d69/dugaxinilafe.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_off0000cda6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA6 5508 bytes
SHA-256: 904fdd2027dfe3887e822af2e4fcef26b8933b781a9f648b7e9d9a1253588603
font_01_sfnt_off0000e04c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE04C 10300 bytes
SHA-256: 2ce657043cc2744d17d58911bb1535364a9faa4af170ac60eb88efffca885839

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