Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bacd29d64986aae…

MALICIOUS

PDF

77.1 KB Created: 2021-04-23 06:25:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 4dbd558078484a94df775e24f6893b9a SHA-1: d242a0255f387f4bd3759b588a5c3ab1009adb3b SHA-256: 3bacd29d64986aae31799f7aba48d23218acfdbbb6037fc39818aba54bf3e1d8
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that, when clicked, directs the user to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit user curiosity with a seemingly relevant topic to lead them to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://dugedepap.ru/strik?utm_term=how+to+fix+car+ac+compressor+leak PDF link annotation
    • http://raxijulerejo.iblogger.org/2069815500.pdfIn PDF document text
    • http://goossyy.online/lapomiboseluwumidebefasanixej.pdfIn PDF document text
    • https://cdn.sqhk.co/kugugofawaz/jifhdgf/7021718214.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498345/normal_602c3bf0f0999.pdfIn PDF document text
    • http://xudogiborijum.66ghz.com/3603358472.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461204/normal_604cf6ace7b4d.pdfIn PDF document text
    • http://badge-verification-center.com/72258684143dp4n9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453553/normal_5fcf7a6891ba0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417045/normal_5fe369c25ae8d.pdfIn PDF document text
    • http://vaxozudobe.22web.org/1360743522.pdfIn PDF document text
    • http://e-devletodeme.net/bioethics_case_studiesrnw0d.pdfIn PDF document text
    • https://cdn.sqhk.co/motanunika/kTgd0hj/rival_stars_horse_racing_breeding_guide.pdfIn PDF document text
    • http://tavaxibewoposo.iblogger.org/54165913454.pdfIn PDF document text
    • https://cdn.sqhk.co/resilano/rxzjfCB/93705653205.pdfIn PDF document text
    • https://cdn.sqhk.co/nazalugewu/iaNLhcw/ladabufopugololumijuxexib.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc86d894-82ff-492e-bb42-62d42698f797/golf_buddy_watch_aim_w10_review.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/vulebodulifobepopuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/65324976906.pdfIn PDF document text
    • http://bajewilogofiro.epizy.com/affinity_diagram_template_excel_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/brother_mfc_9970_default_password.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/what_is_the_weight_limit_on_a_14ft_trampoline.pdfIn PDF document text
    • https://s3.amazonaws.com/voxazedisula/66042764582.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a75b708-cfa9-4db7-8a1a-32f58b665235/wahl_clipper_blade_sharpening_service.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62db98ca-4bbb-4d80-b84d-83a92047e76b/kenwood_ts-570dg_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5eb0a7d-3b5b-406d-9c9c-a14f0e0a5a9b/wositexatesitinodim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a827a76-1c69-41ef-9596-b19aa4e9c285/41538264653.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_off0000f1ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AC 5344 bytes
SHA-256: 8c2279363876fde8c2eb37d89375ee0bbdb3167c0b6d9f077b203573bb76f3e2
font_01_sfnt_off000103dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103DC 10280 bytes
SHA-256: 85ba6d3f9e0e0d7da47465aa137c1cba7de0f92f31dcdcac73d7ecec116a5765

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