Malicious PDF — malware analysis report

Static analysis result for SHA-256 d47cf28bd162bc40…

MALICIOUS

PDF

77.2 KB Created: 2021-03-13 12:46:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 029c2dee47544112f8804996cfde5bb7 SHA-1: 9662adb0ce303a3c84a3d2dbf1fc06354a9e85e4 SHA-256: d47cf28bd162bc406cddceb251b13be7fe6e80767f4df6ca50d957071145ec78
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to malicious content.

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://ponafet.ru/wix?keyword=american+romanticism+poems PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450631/normal_601d6dd6b0d3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384817/normal_602839de13777.pdfIn PDF document text
    • http://hookup756.fun/aulularia_di_plautoih3gk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473062/normal_603f3424c7c77.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472764/normal_5fe227af6cd52.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388611/normal_6045f0b43acbc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496001/normal_601da1607b859.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449395/normal_5fe5ab11dff00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501231/normal_602248bbf2dec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372355/normal_6019fa72eb473.pdfIn PDF document text
    • http://rmk4sale.xyz/how_to_repair_a_leaking_water_softenerz4r25.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497081/normal_6000fc346a7ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415068/normal_60413ccf835b7.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/wunojipu/instep_sedona_bike_trailer_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/94579339171.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f61b1e5-249f-42bd-95a6-8f88bbf045c7/what_is_the_best_carpet_shampooer_to_rent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb4c2d08-3d89-4f8e-bcb0-a1c1b5477418/4956223305.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c19c04a-42e7-460d-b165-88304c5f1179/vermeer_bc1000xl_torque_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/powerpoint_presentation_topics_for_school_students.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/what_is_the_best_book_of_enoch_to_read.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/challenger_school_preschool_uniform.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_off0000f1a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A1 5036 bytes
SHA-256: 98c4ae288d853c752e663763c50a3a8c4c18f7903a59d1367309d4c1ff6be31c
font_01_sfnt_off000102a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102A6 11044 bytes
SHA-256: acf9a228e4e7417129fc7f2a5e3ce67a66ca0f93bc24a8eb56b4e7af25d7e261

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