Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2eb60ae7e64beff…

MALICIOUS

PDF

73.9 KB Created: 2021-05-20 04:51:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d60483a48293cc400c378a6076b42ec3 SHA-1: 52c37acd468f2ab9ddfc14c787f862851ca555af SHA-256: e2eb60ae7e64beff6a14cb664d72199b328c498673828354a7f57209156f23e3
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a fake-CAPTCHA lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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://xajibur.ru/strik?utm_term=how+to+operate+lg+air+conditioner+remote PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4490950/normal_604e69c5993c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380700/normal_5fd3265f8b124.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477155/normal_601da2e4d48eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426942/normal_600dfe9ba7bf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468550/normal_6032e1545ccc8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444104/normal_6057a94f7614e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489596/normal_5ffdc42234b0e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368489/normal_5fef89c5b1058.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367019/normal_605b019c21837.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381347/normal_5fdc2bc81abe1.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/fajeloninesitel/57165231641.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/how_to_get_the_solution_set_of_an_inequality.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f85f36ff-8aad-40d6-95b1-cb286842788f/36541397421.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/strategist_best_sheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8aee5a66-9700-4a96-b6ac-56797908552f/93050383117.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE305 5268 bytes
SHA-256: 59ff9c299c4e620a8cfaec4671ff592a7e1951bc21a1122a464278cb46be5a04
font_01_sfnt_off0000f4e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E9 11016 bytes
SHA-256: 5d30710034463737fef0e5e216f4f39b88cb2cea8f7363e95fb54893cfde2de4

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