Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed3e08ee0b55b8ac…

MALICIOUS

PDF

73.9 KB Created: 2021-02-28 19:00:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 066520977f2cb80f49d1b68602a982a5 SHA-1: eefbd4242c814acf51e4de9220d76b6fef160877 SHA-256: ed3e08ee0b55b8accc61fdc85afe603e1f15da065bb8caddf4c3811a76a609b1
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of external URIs and the overall classification suggest this document is designed to trick users into visiting a malicious site, possibly to download further payloads or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=the+biochemistry+of+respiration+worksheet+answers PDF link annotation
    • http://vitofemegawe.getenjoyment.net/reassess_your_chess_pgn.pdfIn PDF document text
    • http://dumubemajizukov.medianewsonline.com/excel_vba_function_call_on_left-hand_side_of_assignment.pdfIn PDF document text
    • http://gojawufeki.getenjoyment.net/singer_stitch_sew_quick_handheld_sewing_machine.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/donake/77520872371.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/algorithm_in_c.pdfIn PDF document text
    • http://bexukavibume.myartsonline.com/muroxe.pdfIn PDF document text
    • http://lojabupabavize.onlinewebshop.net/27119828680.pdfIn PDF document text
    • http://muduwabu.rf.gd/baixar_livros_gratis_evangelicos.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/what_is_the_purpose_of_social_studies.pdfIn PDF document text
    • http://bexukavibume.myartsonline.com/artemis_fowl_book_1_cover.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/84935986508.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/avisynth_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/data_analysis_in_excel_2016.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_off0000d75f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD75F 5360 bytes
SHA-256: 3da5166267815535967f5651ab03f9c85b56c88fed9d5feef4e6d2eacb7a4f1f
font_01_sfnt_off0000e97e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE97E 10196 bytes
SHA-256: d053b4c095e71f1499b12a0917b9c2c800894d7816511ba4fac9df804eccfc75
font_02_sfnt_off00010c56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C56 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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