Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcaefdfcbbb287ec…

MALICIOUS

PDF

74.1 KB Created: 2021-02-26 09:41:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 2c7f0714ab3a043acd80d50c9e54f39f SHA-1: e6304ba377121acb3d9b658acafb693b81326b81 SHA-256: dcaefdfcbbb287ec6f669a7e2f167d21c80d67c9e3c69c5a501804ab147d44cd
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 phishing or trojan payload. It contains an embedded URL that directs users to a suspicious domain, likely to host a malicious payload or phishing page. The document body, though heavily obfuscated, suggests a lure related to appliance maintenance, a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/strik?utm_term=how+to+reset+butterball+electric+turkey+fryer PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4482848/normal_5fdebeae34b6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454419/normal_600be9985c4ce.pdfIn PDF document text
    • https://cdn.sqhk.co/zofizitene/hdiaPgc/boomerang_app_free_account.pdfIn PDF document text
    • https://cdn.sqhk.co/wibetaxor/iiaOytW/mununafa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473419/normal_5fdeedf10d64a.pdfIn PDF document text
    • http://logunej.iblogger.org/best_carrom_board_games_for_android.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464710/normal_6008e4768ef0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418973/normal_5fd132360cfb6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471273/normal_5fd806086a355.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416802/normal_6021d897946b0.pdfIn PDF document text
    • https://cdn.sqhk.co/porosobof/hdUAici/10975476889.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374371/normal_602036c89ca04.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tutasujal/felimopadojon.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/pemeseniteji.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/55484739264.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/waviwagesovar.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/scatter_plot_graph_maker_online.pdfIn PDF document text
    • http://livajurusurex.epizy.com/does_a_new_home_need_an_inspection.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/heir_crossword_clue_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/ejemplo_informe_descriptivo_preescolar.pdfIn PDF document text
    • http://lobulowigewimu.epizy.com/65621591744.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/kgb_file_archiver_free.pdfIn PDF document text
    • http://pidezesu.rf.gd/compound_words_worksheets_grade_6.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/business_process_modeling_simulation_and_design.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d52d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52D 5012 bytes
SHA-256: 9d6697332e66e12d39f0b5a8966f161321992837d7c5bee3a60d7d3fd421ea0b
font_01_sfnt_off0000e667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE667 10804 bytes
SHA-256: 742e33a57afe461cc48612f33be576a397930e2a6b4a005ea99c40df539ccc4c
font_02_sfnt_off00010b09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B09 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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