Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc47c655446f5aad…

MALICIOUS

PDF

79.4 KB Created: 2021-03-31 02:16:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 329a452a7118de07716589ce788e85b9 SHA-1: 3718016bfcbeead4280a0f5d34c475240c1fdb41 SHA-256: fc47c655446f5aad23e890b39e8bd35e42eeec72a464069b87cec6a158ae5db7
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that masquerades as a search result, likely to trick users into visiting a phishing or malware distribution site. No scripts were extracted, but the PDF structure and embedded URI are strong indicators of a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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=how+is+cell+theory+used+today
    • http://soraguloloj.iblogger.org/49512664949.pdf
    • http://cmbmarketing.agency/what_is_the_name_for_a_female_warrior8wdal.pdf
    • http://bodaweziwov.mypressonline.com/26508111290.pdf
    • http://sokuzise.iblogger.org/siwitasesirarijake.pdf
    • http://thepropheticapp.com/jowosisanazonarutu0jxbh.pdf
    • http://zujewubowufonug.scienceontheweb.net/cinderella_2020_screenplay.pdf
    • http://yesstore.pro/tci_history_alive_the_ancient_world8s49e.pdf
    • http://lefuvaguvupawax.iblogger.org/pasiva_causativa_en_ingles_ejercicios.pdf
    • http://woziwowariv.sportsontheweb.net/catabolism_of_amino_acids.pdf
    • http://nebatomefov.scienceontheweb.net/kuwaxukokavewasusikix.pdf
    • http://hairsprof.ru/13899809733220hu.pdf
    • http://zezasarasojid.mywebcommunity.org/dotavisof.pdf
    • http://desokore.medianewsonline.com/16513727700.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/zuguvoxoki/how_to_train_to_be_a_spy_at_home.pdf
    • https://s3.amazonaws.com/xeropizuwe/welaxumawufedasetoxavasu.pdf
    • https://s3.amazonaws.com/zulezov/worldwide_cost_of_living_index_2020_in_hindi.pdf
    • http://gajopule.myartsonline.com/balsamiq_cloud_export_to.pdf
    • https://s3.amazonaws.com/tokudapele/nonedujadulosemir.pdf
    • https://s3.amazonaws.com/xojafemori/10807627623.pdf
    • https://s3.amazonaws.com/rorives/format_factory_for_android_mobile_apk.pdf
    • https://s3.amazonaws.com/teximikamukubo/puvuxagijot.pdf
    • http://gasadesa.epizy.com/sims_3_cc_skin.pdf
    • https://s3.amazonaws.com/desenaz/benimebiridelexuk.pdf
    • https://s3.amazonaws.com/setikizo/best_excel_finance_templates.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_off0000ea6c.bin
5c041396c6c649760b9860da03e1428ef368c8bae31297cd2914c755618d69cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6C 4956 bytes
font_01_sfnt_off0000fb64.bin
8b426a363af497e101266dd4923ccefdd072232cc8d774e3cef5aec53bbaf787		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB64 10724 bytes
font_02_sfnt_off00012025.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12025 4324 bytes

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