Malicious PDF — malware analysis report

Static analysis result for SHA-256 97cebe38750065b9…

MALICIOUS

PDF

63.5 KB Created: 2020-11-24 01:08:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1854cbac76a467566d106357548648b4 SHA-1: d3771c15fcb046795a0cf02d8cbc1f17a0053398 SHA-256: 97cebe38750065b93c49bb2843da3b4f78602235d92fdb67a024cc6b0cb1e4c7
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'traffine.ru', which is likely a phishing or malicious site. The PDF structure and embedded content suggest it's designed to trick users into visiting this external resource.

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=persona+5+tarot+deck
    • https://cdn-cms.f-static.net/uploads/4393503/normal_5fa34c3cc4bc2.pdf
    • https://cdn-cms.f-static.net/uploads/4501645/normal_5fbb402d67072.pdf
    • https://cdn-cms.f-static.net/uploads/4369901/normal_5f87f17734f17.pdf
    • https://cdn-cms.f-static.net/uploads/4448986/normal_5f9f23060ca0c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/84c0c99c-6b70-4205-abe6-39990b8cdb99/the_fifty_dollar_and_up_underground_house_book.pdf
    • https://s3.amazonaws.com/wivunonovef/vudijetaxapidokevawemu.pdf
    • https://uploads.strikinglycdn.com/files/ea87c838-f5f9-464e-8703-42c2929a57a8/lesolagap.pdf
    • https://s3.amazonaws.com/jedobufudajewu/download_fortnite_mod_apk_free_vbucks.pdf
    • https://uploads.strikinglycdn.com/files/d33ee058-95ea-4abb-9812-200cfa5f464b/98686883495.pdf
    • https://uploads.strikinglycdn.com/files/a2a5fd1d-b05e-4764-9892-26e6ad8efbd1/barbie_doll_drawing_book.pdf
    • https://uploads.strikinglycdn.com/files/4424120d-7891-456a-b281-b3a5882c6dd1/30732093053.pdf
    • https://s3.amazonaws.com/sugaguxagu/important_years_in_indian_history_in_malayalam.pdf
    • https://uploads.strikinglycdn.com/files/8e1848da-0726-43ab-836f-420772eecfbf/diamonds_as_big_as_the_ritz.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bbd2.bin
99254c4fbfb3fd4d80873dca504dea34b7afe68620512b491438b931bdc07585		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBBD2 5088 bytes
font_01_sfnt_off0000cd37.bin
dcad960c5a62d9c3c1acbf7e35a090e3e4aa1dafacce3d40f8de85bfc6a88ed6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD37 10692 bytes

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