Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea967822335657fa…

MALICIOUS

PDF

65.2 KB Created: 2020-11-27 20:20:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9a80a408191cf6f7cd02c6ca4b648aa2 SHA-1: d94d985e919b6586fff211732d9c4aa4a792c916 SHA-256: ea967822335657fa0c3708165c9f3b462fa847241430c7ebe102cf463465bf0a
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://traffnew.ru/strik?utm_term=math+test+grade+3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382784/normal_5fa69a0aeb0a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388814/normal_5f933dcff1e03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496151/normal_5fb8cb0e86b79.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388048/normal_5f8fc0e5d4c5f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413000/normal_5f942157d7210.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/leteraxewe/windows_7_usb_dvd_download_tool_portable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/614226a1-445c-4dc8-92dc-741a7c5d077b/haripath_baba_maharaj_satarkar_mp3_f.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8da2daa3-63aa-4c90-827c-5642316c01e6/14953789177.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2054b87-0edb-4685-bb9d-4b1c45ae1267/vafawinubise.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/boom_beach_hack_generator.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/52922319496.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c44042fb-13f3-4a91-b367-2475c2b0bf9a/marvel_trading_cards_1994_price_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36b284ab-34a6-4b38-8b95-9880299422dc/44496316908.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/chi_square_test_uniform_distribution.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afdcb55b-471d-48ad-a3c3-351736721976/36302887716.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_off0000c3c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3C3 5224 bytes
SHA-256: 29226462411bb04c96ee8aa490dcc6f580e7cbf44fe2bd4b4f450e683daee9e8
font_01_sfnt_off0000d58e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD58E 10052 bytes
SHA-256: a7e7a3da9218102d669a4a15a09d8451f2feeb47d4c6ece9bd54365f37499f89

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