Malicious PDF — malware analysis report

Static analysis result for SHA-256 97bda8d2dac20e87…

MALICIOUS

PDF

71.8 KB Created: 2020-11-14 01:25:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1d6b7a48aeaa4291247444b63ce95648 SHA-1: d1053f3cf15b1b92cbe55f31ff3e3e224b3940a2 SHA-256: 97bda8d2dac20e878afdae16956984dfa0be8935ce04cb0673b20c97352feb30
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-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://trafftec.ru/123?utm_term=la+oveja+perdida+marcos+vidal+letra PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365634/normal_5f88bc86d7508.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408352/normal_5fa1026f4fef6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464722/normal_5fa3ec41a63e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481278/normal_5faf0608b50a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368223/normal_5f924be491e67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447276/normal_5f9da5e98eb8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387816/normal_5f9b257e44c50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380080/normal_5f99c2ff94fda.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/bb013500-36fe-413c-9a4a-0aa9dba9e056/rogue_one_astromechs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bab2ba17-cbed-4386-b2d4-d3067eae1513/65087785520.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24699cd7-8882-41cc-998a-f7920794a61b/vimumaboritakolil.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/brent_elementary_school_alabama.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43ead56a-622c-4e8e-a379-34ed66ea6d13/apk_file_extension_tool_windows.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d1fe969-a91a-42e4-8374-36725aa0396d/57605240826.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca6a7d45-d9bb-4ab4-b171-2b3b3ed6c011/verbos_irregulares_en_ingles_que_son.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bf19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF19 3772 bytes
SHA-256: 1913733b692727c7a1f66464eb418102b2e90e7c410045543731237379c8b19d
font_01_sfnt_off0000cc52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC52 4976 bytes
SHA-256: 76003b0660428344a3d8ba3fa621356935764e6cceb7c6c52e58c8b266f5fe05
font_02_sfnt_off0000dd56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD56 11276 bytes
SHA-256: 651bb7d0952adce2c30ca2e3466273c9720bdba3bae092556b079ea43bbd9efd
font_03_sfnt_off000101fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101FD 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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