Malicious PDF — malware analysis report

Static analysis result for SHA-256 be96bd45a37933b1…

MALICIOUS

PDF

74.9 KB Created: 2021-04-08 18:43:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 0acd52a5b0fecb723860cc6c21eb1d51 SHA-1: 10a9258c21c51dafb0e61d77cf36f7de0462263e SHA-256: be96bd45a37933b1fb5a1c20ae43b79f4545a7f568702356949bb6b90b67bd4b
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an external URI, which points to a suspicious domain 'soxebez.ru'. The document body, though heavily obfuscated, contains text fragments that, when combined with the URL, suggest a phishing lure related to recipe books. ClamAV detection and ML classification further support its malicious nature, likely as a phishing document designed to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://soxebez.ru/strik?utm_term=what+is+the+best+vegan+recipe+book PDF link annotation
    • https://cdn.sqhk.co/solijisivono/ijiiJN4/disney_droid_depot_parts.pdfIn PDF document text
    • https://cdn.sqhk.co/nukusigemug/khQCieX/3_circles_word_game_answers_level_15.pdfIn PDF document text
    • https://cdn.sqhk.co/sidogorego/eiieidW/irancell_man_login.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/63059655818.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b053eb8b-9862-40cf-97a0-9ee8b4e8ff66/tepebuwejarotexanavajor.pdfIn PDF document text
    • http://kodexogezetegir.epizy.com/86618647742.pdfIn PDF document text
    • http://paporoj.rf.gd/sociopath_checklist.pdfIn PDF document text
    • http://tobewopuma.rf.gd/nuvivesuginupotijama.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a30c6328-3f48-40d7-918e-49b99c8b8caa/diana_her_true_story_book_review.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/libro_de_fisica_1_medio_2020_mineduc.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/coc_offline_mod_apk_latest_version.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/78326361513.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/863eec74-2c03-4420-bb19-3b3c2c31cda2/is_it_hard_to_learn_stochastic_calculus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/704e055c-ce16-4c33-b2ba-1993f0136b31/2012_highlander_hauling_capacity.pdfIn PDF document text
    • http://lufepurobu.epizy.com/jakux.pdfIn PDF document text
    • http://kepinud.rf.gd/balancing_chemical_equations_worksheet_with_answers_hard.pdfIn PDF document text
    • http://figiwulowiwumoj.epizy.com/acute_decompensated_heart_failure_adalah.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e818.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE818 5440 bytes
SHA-256: 79a9d87be80b434e2951656c89b7502623cf68b17ea372bdfc983f3b0393837b
font_01_sfnt_off0000faa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA6 10476 bytes
SHA-256: b9c342debefc60e66023e8894ec3b1606c78754c914e2f2b493a5635aef9ecd9

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