Malicious PDF — malware analysis report

Static analysis result for SHA-256 325fc287ac20e7b4…

MALICIOUS

PDF

81.8 KB Created: 2021-03-25 15:42:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 7e65c484628ca1b523ae9c54a8c46f7f SHA-1: af1bdbfa20781dcc0d3594d82a25ea7693bad08d SHA-256: 325fc287ac20e7b4582fe9c8321e1279665368d2c9bfafc04651a7ef281d20d8
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is flagged by heuristics as malicious and likely part of a phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/award?keyword=tosca+automation+tool+tutorial+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4418362/normal_604a8c3026349.pdfIn PDF document text
    • https://poxuxeket.weebly.com/uploads/1/3/3/9/133997588/352063.pdfIn PDF document text
    • http://igbusinessabouthelp.com/green_smoothie_recipes_with_spinach_and_avocadokojs6.pdfIn PDF document text
    • http://delayikapy.xyz/adobe_premiere_pro_cs6_32_bit_free_domi03.pdfIn PDF document text
    • http://snegny.com/kali_linux_revealed_downloadebzck.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367273/normal_600ef0088f69d.pdfIn PDF document text
    • http://meetplafond.xyz/complete_technical_analysis_trading_coursegvcks.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499005/normal_5ff5151147b78.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476578/normal_5fe485fe2f22f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475219/normal_604b783862b5f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386849/normal_5fd828efe6acb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477173/normal_600ee62d4035e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464542/normal_6059998e87a6d.pdfIn PDF document text
    • https://nisikigibifug.weebly.com/uploads/1/3/0/8/130813528/261ad2.pdfIn PDF document text
    • http://konolux.medianewsonline.com/ford_555_backhoe_service_manual.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489969/normal_60075e0e5bb81.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/kimone/definition_of_quality_management.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/exception_handling_in_vb._net.pdfIn PDF document text
    • http://vilumepidiwego.myartsonline.com/43380055877.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/how_to_get_an_entry_level_engineering_job_with_no_experience.pdfIn PDF document text
    • https://s3.amazonaws.com/vokeri/nejitozax.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/tchaikovsky_piano_concerto_1_sheet_music_free.pdfIn PDF document text
    • http://lutepotazor.onlinewebshop.net/dijopapesedaxiti.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_off0000f64d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF64D 5012 bytes
SHA-256: 0fedd2cbd9d66788755d45733c37cf57c8c8212ac6d5842b8be751f3524fea4d
font_01_sfnt_off0001072e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1072E 10716 bytes
SHA-256: 037834ca796bd9413c66e40db12470d9a3b8f4a1812aefc734ac2c3d26c5fb8e
font_02_sfnt_off00012bdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BDD 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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