Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcae25296bb0812c…

MALICIOUS

PDF

71.0 KB Created: 2020-12-05 16:10:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ff27a66f8212fd1ac871e4546505ccae SHA-1: db71cc68974d50f7666309b48dee7256bc2ecbc8 SHA-256: bcae25296bb0812c721182e7c8a3b19882d1a84c121ae9b176ec435d64a8b1d7
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://traffine.ru/strik?utm_term=land+of+stories+pdf+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383464/normal_5f98227c88b26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382780/normal_5f992ffb0a2b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416331/normal_5fca461aa8df8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420244/normal_5fc9a207a3f5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384310/normal_5f8c284a288ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369647/normal_5f9bd45fd701b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402533/normal_5fa39a3c7080f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458854/normal_5fb333ceb6507.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485015/normal_5fc512eab469b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382771/normal_5f92fd587d6e4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf57283570fb44d1f9b4e3/1606375208355/mutants_genetic_gladiators_guide_all_breeding_combinations.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc136563398ff7515300e75/t/5fcb7e901df7590d80e08a0b/1607171728814/darkness_rises_pc_gameplay.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4d7d9c6229360ecc61b7b/t/5fc586659d793648404aa1aa/1606780518142/19377040381.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5213960f2895dc10339a8/t/5fc766378f079636157a3188/1606903351732/room_escape_contest_2_level_31_plates.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5ac1588c99b6d37c7e4a8/t/5fcb27fb6e74d26c6ffa9823/1607149564557/tabletop_christmas_decor.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc72aced32fb7060d106d88/t/5fc924641867e7281b40d510/1607017580399/ear_specialist_doctor_in_gwalior.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_off0000daf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF5 4944 bytes
SHA-256: 70e735f56217de02428266956acf2539721e17324e1c7f196dceb20636b52f0f
font_01_sfnt_off0000ebe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE1 10264 bytes
SHA-256: 2db998ef8c63c9b9d2f4204a1015b32f2e172cb8cea158655205e5c6b000aa22

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