Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bc7ec6c62df5f71…

MALICIOUS

PDF

75.0 KB Created: 2021-05-20 01:47:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: f8411c09779afb37d944599dc080589f SHA-1: c0a1f136c423a0a30a7e29c3d2f3b95d167f9ac3 SHA-256: 9bc7ec6c62df5f7152d20398934383828101419971516a4c68e8090d29152259
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. 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 0.9996

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://golowaki.ru/strik?utm_term=istatistik+1+final+sorular%25C4%25B1+test PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4471703/normal_6038fe275ff4e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496378/normal_6068028484276.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464311/normal_5fdc125c450a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458421/normal_603fb872aa315.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382406/normal_600216cd1827a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480755/normal_5fc8829c09618.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479436/normal_5fd80732e6ed4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494866/normal_603061d55d057.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376612/normal_5fc5a0ae8ee02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443608/normal_6055a3201c258.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/11fed2b0-4d64-496d-9dfd-7c3d1b34f23f/12470750700.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/eldritch_horror_setup_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/test_completion_report_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/printable_preschool_feelings_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/80957199776.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50ba3ffb-10c0-4246-86aa-9fe51cd8e421/tekagixuwinufazi.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/tuzek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7cdaf436-0b77-478c-9e87-2b3f9b01ea4b/digidigufe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bd889bd-9096-41ba-b7cd-94c8af85774e/key_elements_of_musical_theatre.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e3f6ace-9384-41f9-8822-319ca39b6639/54678203304.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa7252f0-1918-4277-99b7-da2a475621b0/what_is_the_a1c_range_for_type_two_diabetes.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 7

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_off0000dfef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFEF 4848 bytes
SHA-256: 2115cf27881076f8da173eb01be9f3b2d0bc445b324df18bbf31c0f8a476f919
font_01_sfnt_off0000f080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF080 13964 bytes
SHA-256: d7213ad1da6c1aa5a4a6612482d6da4ca09a2a693746409788bcad8ac86e5403

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