Malicious PDF — malware analysis report

Static analysis result for SHA-256 25a92296fcb20c75…

MALICIOUS

PDF

152.6 KB Created: 2021-04-27 20:48:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 966de1847d5da8f1fbfcfb5ab479fccd SHA-1: 0988cf26613b418119a9b5331a6ba41307c9d903 SHA-256: 25a92296fcb20c75afa63e6e74f94056b3d90d42f5af0cb23623ce9d5afae605
116 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a lure related to 'Skyrim special edition walkthrough guide' and embeds a URL pointing to 'druttle.ru'. This URL is likely used to redirect the user to a malicious site, potentially for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 5

  • PRC/3D content in PDF medium CVE related PDF_PRC_3D
    PDF contains PRC 3D content. PRC/U3D parsers have been a recurring Adobe Reader attack surface; treat as a related parser-exploit indicator rather than a specific CVE match.
  • 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://druttle.ru/strik?utm_term=skyrim+special+edition+walkthrough+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4446762/normal_603f0607665de.pdfIn PDF document text
    • http://vizazovabula.mywebcommunity.org/24907162298.pdfIn PDF document text
    • http://xupulakikovuxo.mypressonline.com/nuwakotiramivirovanon.pdfIn PDF document text
    • http://wutugaxekuride.22web.org/87422798371.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462982/normal_6056f0e232dc4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475208/normal_5fe3c8b42037d.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
    • http://dajajubofu.rf.gd/abraham_maslow_theory_of_personality.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/xilovale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fd8c70c-71c4-4e2b-a10a-1609cd452405/30152618198.pdfIn PDF document text
    • http://ziwivazud.onlinewebshop.net/namole.pdfIn PDF document text
    • http://muwiliwus.epizy.com/musabodanaxawuw.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/electron_arrangement_in_atoms_answers.pdfIn PDF document text
    • http://wubogijogazerew.epizy.com/82003887478.pdfIn PDF document text
    • http://pixezoki.rf.gd/bagian_bagian_bunga.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/fikazapemigupifu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/659734e9-7d2a-4cf6-8deb-e757c4a1664b/who_are_the_three_brothers_from_the_deathly_hallows.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08c0f4ac-25f8-4b47-9453-d8deae4455dd/cyberpunk_2077_update_1.04_ps4_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/pibigovewisixidufasib.pdfIn PDF document text
    • https://s3.amazonaws.com/mesotodimus/soxotevu.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/payroll_calculator_excel_spreadsheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ee4b142-d770-49ea-9d38-d9263a4736bd/2688509372.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef6c4f23-8be2-4798-8ace-41b9ada6c0cc/john_deere_4555_problems.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000209f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x209F6 5732 bytes
SHA-256: 1ed048f61527c221d6af48848f1c8c6896f363b27417839e587efb88988fc17b
font_01_sfnt_off00021d54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21D54 11312 bytes
SHA-256: 67f06b4fdc3b54da97376767e7daa4dd9937c078180a92cddd747e99b2da74fc
font_02_sfnt_off000243d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x243D0 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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