Malicious PDF — malware analysis report

Static analysis result for SHA-256 dced06def1df7922…

MALICIOUS

PDF

80.3 KB Created: 2020-11-23 18:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 0648c99482224d34793257cd8ffff4e1 SHA-1: dd8f7323c1479608ec32fc0621cdd465c8a7aeb4 SHA-256: dced06def1df7922cd2bd8800abd96bce8401c288a75b8340ebafabe883b56fe
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 0.9998

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://trafficel.ru/123?utm_term=route+3+pokemon+brick+bronze PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369646/normal_5fb276997e64a.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/1faa8d5b-02fe-45b4-9f55-78f5fee12662/lavuwopakaveb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e199b04-301a-41e0-8324-abc3dd7ca028/78158885752.pdfIn PDF document text
    • https://s3.amazonaws.com/satedafadusizo/50086467704.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/lost_saga_wiki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5f1d2d0-e5c3-466a-b4e6-530cf07516a5/le_cerf_et_le_chien.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c736cd3-d24b-4c23-b0fe-5208bf70fc38/fopupesetomopikexafixukid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c733d072-cce9-4821-a560-aa25e1d372d3/85101521626.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc0e1582-b97f-44fc-ac83-72670d92f7ba/kenzC3BCl_havas_oku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcd6d35d-cc81-4072-acaf-4411e195342c/9968388515.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dedf9c4d-77d0-4078-bd01-302263586714/6589614975.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47915124-6eb7-41c2-96cf-6784b9d295ac/psicologia_social_definicion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b988ed86-f97d-4c69-902c-41a848b45d92/park_center_senior_high_staff_directory.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/django_interview_questions_and_answers.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7CF 5084 bytes
SHA-256: 19719ed65b2e7a47916bdbd6ec75df5c4125b23631bf1cdac25b4b557e5b873a
font_01_sfnt_off0000f91c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF91C 11276 bytes
SHA-256: 7c6c5d412369b665f77f313f084fe92955348257d8544e33cb4bb6b4d91764d3
font_02_sfnt_off00011f77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F77 16084 bytes
SHA-256: e2b340c24645249167db920fc306cca255b7293b0829f8d33083aeb256902ca1

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