Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6948ef6adb66598…

MALICIOUS

PDF

77.3 KB Created: 2021-03-07 20:40:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: e963e294e50aae1d4b0b4052c6fa94dd SHA-1: 6de03e8b54f5a79438bb9b07cf06e269d7e13584 SHA-256: b6948ef6adb665986470a6dfeb8643f2210f8d92bf91084f542b69f335d207e4
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create PDF documents from web content, further supporting the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=turcom+ts-6610+graphic+drawing+tablet+review PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366308/normal_6027f2dbe0b9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387037/normal_601e4b1814284.pdfIn PDF document text
    • http://kurekarer.22web.org/state_space_observable_canonical_form.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453906/normal_602c2d74c31af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498883/normal_5fe6a156c2e7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414680/normal_5fd147bfbd3f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384642/normal_5ffaca099a879.pdfIn PDF document text
    • http://nizuvifoko.iblogger.org/19732717671.pdfIn PDF document text
    • http://wojozaxoxofomel.22web.org/62734735501.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xupimaral/haida_gwaii_surf_report.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/64502237096.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/61431027905.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/sl_blend_worksheets_for_kindergarten.pdfIn PDF document text
    • http://xirakogo.epizy.com/jiropinijomeduwepovusina.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/samsung_tv_with_analog_audio_out.pdfIn PDF document text
    • https://s3.amazonaws.com/dojonuta/causes_of_cesarean_section.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxefemebidaz/92450507158.pdfIn PDF document text
    • http://fofeparulofiz.rf.gd/school_supply_list_for_seniors_in_high_school.pdfIn PDF document text
    • http://rifimazagajide.epizy.com/is_dwg_viewer_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/blue_moon_beer_nutrition_information.pdfIn PDF document text
    • http://nasedelowose.rf.gd/freelance_consultant_invoice_template.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_off0000ee73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE73 6108 bytes
SHA-256: 4c7fee7f76503851a5bc83306730e770ee4a315b0949c7d1877332bf1d006957
font_01_sfnt_off0001032d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1032D 11088 bytes
SHA-256: 57da3b0207d11c1ded2c9699f8e4ee5bcd5904b332cf9d8bced7dc72b6478e2a

Open this report in the interactive analyzer, or submit your own file for analysis.