Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fea421a241122ec…

MALICIOUS

PDF

83.8 KB Created: 2021-02-26 11:47:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: aec3e7ec27f2d123282c9bc8f1bc93a3 SHA-1: c30b93c3749705caebb51c4a4be03306df1d5c8e SHA-256: 0fea421a241122ec70d23f7e57f387ce18e2bd750e8e4e7450dd4ddb6e745c28
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded text that mimics a search result, directing users to a suspicious URL. This URL is likely intended to serve a malicious payload or lead to further phishing attempts. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/123?utm_term=ramana+maharshi+books+in+tamil+pdf+free+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4473419/normal_5feda0058b689.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473049/normal_5fd67b38380c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417834/normal_6015d50d8db86.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414695/normal_5fc91250176f2.pdfIn PDF document text
    • http://twenty-promo2020.ru/29112279096i8wq2.pdfIn PDF document text
    • http://world-wild-shop.com/songs_with_i_vi_iv_vdo1ml.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383128/normal_600b4c19281e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409107/normal_6037cddde6178.pdfIn PDF document text
    • http://fashion-deals.xyz/what_game_system_replaced_the_wiia7ds9.pdfIn PDF document text
    • http://miiliioner.xyz/zujanje_u_usima_uzrocis8ktt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/buwosevax/62772971367.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/araucaria_heterophylla_fact_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/create_button_in_html5.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/volume_of_frustums_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/koxofenorogib.pdfIn PDF document text
    • https://s3.amazonaws.com/xijuxosisomuna/python_list_sort_key_tuple.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/gomesakibasagudederopiw.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/aktu_date_sheet_mba_1st_sem.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/ceramah_ustaz_ebit_lew.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/29821394257.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/50797708334.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_off0000e741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE741 5584 bytes
SHA-256: 0dc26da9d789ed6d3ede7243d1297bc23fdf5092d8604b40abb136286b58bb52
font_01_sfnt_off0000fa1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA1F 14300 bytes
SHA-256: f207e5745b1212293c7b79ccdb44c00b3747f2f33b4db42df4cd5698185f4564
font_02_sfnt_off00011c3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C3D 10812 bytes
SHA-256: 961376baa6c6e3d7803a20bebbb581b3268f31330adbf18585ea2af4a87e9e70

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