Malicious PDF — malware analysis report

Static analysis result for SHA-256 30461e1eb6240414…

MALICIOUS

PDF

77.3 KB Created: 2021-04-11 23:49:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3de36023f6c19fa4b616d720242042a6 SHA-1: 76e2f368b0ae3adbfc152e2f77500f1204753db3 SHA-256: 30461e1eb6240414caed302dfa39af47dfd444dd7a0a738e41e17f62a17034fb
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that leads to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. The document body, though heavily obfuscated, contains keywords related to the URL, suggesting a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/strik?utm_term=focusrite+saffire+pro+40+details
    • http://nuwiratuzitezep.22web.org/pewakijofoluxikupizuv.pdf
    • https://cdn.sqhk.co/vusunuvaka/p1lV9cg/defence_science_journal_author_guidelines.pdf
    • http://hydrofthol.space/midezopegugefubo5p7k.pdf
    • http://distornyup.site/chamberlain_universal_keypad_wont_programue1mj.pdf
    • https://cdn.sqhk.co/jawafurovif/awERijC/final_fantasy_crystal_chronicles_race_guide.pdf
    • https://cdn.sqhk.co/tixukiko/kiegdhd/music_equalizer_pro_apk.pdf
    • https://cdn.sqhk.co/dofexoxev/ggiegcq/ketijigokage.pdf
    • http://boost-shop.xyz/zokorupowubufapoviluxilkqz7n.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zitadufafasid.onlinewebshop.net/pendidikan_agama_islam_kelas_12.pdf
    • https://uploads.strikinglycdn.com/files/f648371a-06ad-4fb5-8972-8b88e1abdd0f/12551342537.pdf
    • https://uploads.strikinglycdn.com/files/e8bc24e4-8ba3-4a0c-8a2b-237d2a8c17d2/is_the_cruel_prince_becoming_a_movie.pdf
    • http://sisufovofow.atwebpages.com/role_of_audit_committee_chairman.pdf
    • https://uploads.strikinglycdn.com/files/e6d61c41-424d-4eb6-9af5-6c95aa5fbae8/verb_to_be_affirmative_and_negative_worksheets.pdf
    • https://uploads.strikinglycdn.com/files/1654e8e4-ca01-49ed-aa94-95d1d38fefc5/reading_comprehension_worksheets_2rd_grade.pdf
    • https://uploads.strikinglycdn.com/files/125ce573-4b9a-4579-9466-a75a1b464f71/how_did_the_stock_market_crash_contribute_to_the_great_depression_quizlet.pdf
    • http://woranuganavot.myartsonline.com/the_rock_cycle.pdf
    • https://uploads.strikinglycdn.com/files/6704fd91-5ffb-4e51-9f1f-c465e53955c3/9159532229.pdf
    • http://vajapojaperusu.myartsonline.com/blanche_neige_conte_court.pdf
    • http://luvigewe.rf.gd/38279287356.pdf
    • https://uploads.strikinglycdn.com/files/0d9bd6d8-76bf-48ae-b10c-7a4313a9aa97/how_to_find_initial_velocity_with_x_and_y_components.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_off0000ee48.bin
53fde8b1b812f0ba51c004084fe23bd0fef726037742ee52fb190adcd7171c28		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE48 5336 bytes
font_01_sfnt_off00010085.bin
e7630f76528d36ed0805dcdbe0dd90e2fbc3016a168cb7d36992198b07464120		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10085 11648 bytes

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