Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d5708d94c37a8c8…

MALICIOUS

PDF

69.5 KB Created: 2021-05-25 00:24:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 540c65465bfacad317e32f668e3badf5 SHA-1: 555169f51f3890c45ee8f15d76cc12f097573bb0 SHA-256: 2d5708d94c37a8c8bb613df91b4a28d5cacda376adebf254dc26db2c962e6a68
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'xezojetit.ru', which is likely used for phishing or to download a secondary payload. The document body, though heavily obfuscated, suggests a lure related to 'Hasbro' and character cards, aiming to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xezojetit.ru/strik?utm_term=hasbro+bil+bakal%25C4%25B1m+kim+karakter+kartlar%25C4%25B1 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393188/normal_5fd33561a930a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501634/normal_606543a05e346.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479902/normal_5ff374592c825.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369496/normal_6029a96939922.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444095/normal_601b822ac06ef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469116/normal_5ff7764eddd0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469116/normal_606e8ac5d099e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420028/normal_601ece0418d4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413475/normal_60543bae42d26.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486365/normal_5fc90c3c63d2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443588/normal_606567823d6a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425737/normal_5fd5fb9642655.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408482/normal_6057a7df7b170.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446260/normal_6001519e0fbba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421788/normal_6063df2544d5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458824/normal_602df48d9e1ba.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/f3ea01b7-18af-47a5-85b0-c50d11e66add/fugubigisivapix.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/aoc_q3279vwf8_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/guided_reading_books_level_f.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcc55b39-24e8-444c-bd73-23ec5c7e9f0c/organic_chemistry_questions_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cb7696d-a0ee-40b3-8c90-58b10b9362bf/tumagasonovokujurodamunog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6a1f81a-c2c0-4e19-b738-431d298bdc26/crossfit_workout_tees.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_off0000cf64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF64 5028 bytes
SHA-256: a585f2725a147ffffe40d4a805ea203160c8f445ee95616b52edaa42832d2d94
font_01_sfnt_off0000e064.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE064 12036 bytes
SHA-256: c89e0da71e9cae926966208b4b15d3d23a47c070e73d041e4ad68808a2f0ff4d

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