Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e1d37ec4052c477…

MALICIOUS

PDF

83.7 KB Created: 2021-03-20 22:27:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cf1e1489c10e478607b58ff9953ed200 SHA-1: 403b6687468502f4e8bbee9faa4fba114b64f38c SHA-256: 4e1d37ec4052c477b57c95ca299c7f9de8a12d1b3982c3d791c5e264ba2027f1
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, https://xezojetit.ru/wix?keyword=ranger%2527s+apprentice+book+4+pdf, is the primary indicator of compromise, suggesting a phishing or malware distribution lure. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic point towards a malicious document, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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/wix?keyword=ranger%2527s+apprentice+book+4+pdf
    • https://cdn.sqhk.co/gikasiful/jTgfYtB/93279804733.pdf
    • https://cdn.sqhk.co/datolabevev/dlAidjb/braid_salon_los_angeles.pdf
    • https://cdn-cms.f-static.net/uploads/4485826/normal_5fdb1be33817a.pdf
    • https://cdn.sqhk.co/zuxifobiro/giuheth/video_compressor_free_for_windows_7.pdf
    • https://cdn.sqhk.co/nawafoxobok/iejAVhd/hocus_pocus_halloween_costumes_canada.pdf
    • http://wugegifa.getenjoyment.net/36722306677.pdf
    • http://digosige.mywebcommunity.org/how_to_drive_a_trailer_in_offroad_outlaws.pdf
    • https://cdn.sqhk.co/xuluriwu/qAdYjbL/damemojotutesiwixe.pdf
    • https://static.s123-cdn-static.com/uploads/4483361/normal_5fc5b6c778c38.pdf
    • http://sijemogezabusa.sportsontheweb.net/puerto_rican_store_chain.pdf
    • http://lakujalinifibo.mypressonline.com/state_employees_credit_union_hours_black_friday.pdf
    • http://gililofus.medianewsonline.com/ballet_barre_exercises.pdf
    • https://cdn-cms.f-static.net/uploads/4485172/normal_602ece5c21a40.pdf
    • http://vodabutopidaru.getenjoyment.net/ratominelubisidavi.pdf
    • https://wenojobopowegit.weebly.com/uploads/1/3/4/8/134879608/80981bbe46d88ee.pdf
    • https://rapovadok.weebly.com/uploads/1/3/4/7/134705404/7e37d7f9a8.pdf
    • https://cdn-cms.f-static.net/uploads/4459060/normal_603bdf83b2ef5.pdf
    • https://static.s123-cdn-static.com/uploads/4450421/normal_5fc8750d3a30b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://peforiroli.epizy.com/free_financial_statement_template.pdf
    • http://towirasoruxapob.rf.gd/lenovo_android_phone_test_code.pdf
    • http://lexegeverurejeb.rf.gd/59271523402.pdf
    • http://virotowil.rf.gd/zipile.pdf
    • http://rabelame.atwebpages.com/algebraic_expressions_questions.pdf
    • http://lekugonaj.rf.gd/2393547145.pdf
    • http://jeborawaleko.atwebpages.com/fixupemanemuwisod.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8a4.bin
056b74bddf5c41e1eb540d5151da37dcfe37df834cff1388521e0219a8edcedd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A4 5412 bytes
font_01_sfnt_off00010b20.bin
5bf101088045b8f7248e0c394be8428cb06b029e11d33289338f47bda524c83f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B20 12344 bytes
font_02_sfnt_off000132bc.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x132BC 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.