Malicious PDF — malware analysis report

Static analysis result for SHA-256 9926ad69ef32f83a…

MALICIOUS

PDF

72.1 KB Created: 2021-05-14 02:00:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d765e129cc4775e1bed2e2e2345400c1 SHA-1: 8309d82a46207811e0047c12eef58265d639f03e SHA-256: 9926ad69ef32f83a9e1b8550015bba890209c93620bdee7b59985dd52d9a86c3
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'dugedepap.ru', which is highly suspicious. The document body, though heavily obfuscated, suggests a lure related to a product manual, aligning with phishing tactics. The presence of multiple unknown URLs further supports the malicious intent.

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://dugedepap.ru/strik?utm_term=philips+voice+tracer+dvt1110+handleiding
    • http://begetus11ppz.xyz/629009981804wk4e.pdf
    • http://iranianvc.com/ge_amplified_indoor_antenna_34700_manual5o5x3.pdf
    • http://samettemiz.xyz/munobopac3g7i.pdf
    • http://babubusawase.22web.org/53398743327.pdf
    • http://dujosibixejo.22web.org/57387249755.pdf
    • http://santaparker.store/pibafokidoum4ab.pdf
    • http://g2am2e.xyz/is_steamunlocked_reliableh5n76.pdf
    • http://meetraisins.club/review_of_the_stand_cbs_all_accessltnij.pdf
    • http://pubgmobiie.com/suvipon7iw6.pdf
    • http://koreanluxe.com/que_tipos_de_sistemas_operativos_existen_en_la_actualidadrpbko.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/43c6dfc6-99d1-4968-917c-5920699b3548/mofazelinaxagosevubeb.pdf
    • http://pisasegobure.epizy.com/compelling_american_conversations.pdf
    • https://uploads.strikinglycdn.com/files/ec8f5f20-35ec-4f8d-9396-8c62b72642ff/why_was_the_gospel_of_wealth_significance.pdf
    • https://uploads.strikinglycdn.com/files/f6c45090-e236-423c-bf70-a48b34686719/xoluwofes.pdf
    • https://uploads.strikinglycdn.com/files/3fb8dd25-5e51-4943-9df1-dfc36dad5656/weber_grill_restaurant_chicago_reviews.pdf
    • https://uploads.strikinglycdn.com/files/83e44c55-6218-43e4-a975-8f71e8be59c5/80101708257.pdf
    • https://uploads.strikinglycdn.com/files/7a2027c4-2486-43e3-a6e3-2055fc4fdc16/begadeliluvujuni.pdf
    • https://uploads.strikinglycdn.com/files/6b59c748-0c60-4b86-8f80-91421cfcea3f/harry_potter_book_1_barnes_and_noble.pdf
    • http://ropipowewigu.epizy.com/vertical_angles_worksheets_grade_7.pdf
    • http://xizanisud.epizy.com/ethiopian_value_added_tax_proclamation.pdf
    • https://uploads.strikinglycdn.com/files/6c847f2f-3cf6-4010-8ef2-54a9956f123c/puntos_de_partida_10th_edition.pdf
    • https://uploads.strikinglycdn.com/files/4493793e-118c-48a7-b253-db86b5cc933a/25350801080.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_off0000dc55.bin
aabbc5342b9a375f603b00d79811e14da06a0a143eeadb5c05a21863c8c944d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC55 5592 bytes
font_01_sfnt_off0000ef5b.bin
7ffcdee6de64d8a8f5ae00384119dd0c6f5dc97652a949da5ccbb5c9db411192		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5B 10608 bytes

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