Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8d9e0eb2ece8a02…

MALICIOUS

PDF

111.3 KB Created: 2021-02-24 17:48:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 806017e811fb647783074228f3c8a22a SHA-1: 29973da62ce5fed5fc333ff9002e45fcbe6d3889 SHA-256: e8d9e0eb2ece8a024e8b8f409d4cf0c604c438a24239fe560d6983c58eaf2064
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://jottigo.ru/strik?utm_term=foucault+governmentality+essay', which is likely a phishing or malware distribution URL. The document body, though heavily garbled, suggests a pretext related to an academic essay, aligning with social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/strik?utm_term=foucault+governmentality+essay PDF link annotation
    • http://komujevakikumu.22web.org/how_do_you_describe_the_shape_of_a_line_graph.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/Puk6Fhg/viwumukarujofobo.pdfIn PDF document text
    • https://cdn.sqhk.co/vobevufubito/ijgh1ji/tobimuxedotikaperesowefoj.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/tHjaqje/ps4_second_screen_not_working_2020.pdfIn PDF document text
    • http://insuranceautousa.com/does_us_postal_service_ship_internationally5ozf7.pdfIn PDF document text
    • http://winoorama.site/download_nook_book_as_epuby0euh.pdfIn PDF document text
    • http://jesiwufap.iblogger.org/79408112772.pdfIn PDF document text
    • http://muldwych.com/aircraft_mechanic_mobile_alpq4g7.pdfIn PDF document text
    • http://kujubawakini.22web.org/16840229677.pdfIn PDF document text
    • https://cdn.sqhk.co/nemuvefik/ib0TThg/basketball_championship_rings_2019.pdfIn PDF document text
    • http://kafojiv.iblogger.org/top_platform_games_xbox_360.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sepuxukejobome.epizy.com/pezowabe.pdfIn PDF document text
    • http://wanudoxemix.epizy.com/widaridekikikumerojil.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/rimewakisakajojek.pdfIn PDF document text
    • https://s3.amazonaws.com/welanisowari/bapalemolasorozidage.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/67822791884.pdfIn PDF document text
    • http://sukufitax.epizy.com/calcium_deficiency_symptoms_in_plants.pdfIn PDF document text
    • https://s3.amazonaws.com/bipepezuwed/11th_botany_books_free.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_off00017783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17783 5236 bytes
SHA-256: 3fd0426ad1fbf5c49af1d9bad679f29374e51227782b9a0abd0372bef29e24fc
font_01_sfnt_off00018951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18951 11748 bytes
SHA-256: 610d7d7ac8cb8866853f08879062e70fc2df8238bab628c6e35642a2e56ba7f0

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