Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d4e71b0fab00737…

MALICIOUS

PDF

94.9 KB Created: 2021-02-24 18:47:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 32c349ea4435339564e40dcd8f79af69 SHA-1: 928a2753d54a6bc3fccedbe73b40218558bb5102 SHA-256: 9d4e71b0fab0073764efae624d160528e67334e61ca1ccddca99600ec1877ac1
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate maliciousness. The document body, though heavily obfuscated, suggests a lure related to starting a podcast network, likely intended to redirect users to the malicious URL for phishing or malware delivery.

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://leonvi.ru/strik?utm_term=starting+your+own+podcast+network PDF link annotation
    • http://vetapako.22web.org/what_are_the_attributes_of_self_reliance_in_civic_education.pdfIn PDF document text
    • http://zufufamaz.66ghz.com/fimarob.pdfIn PDF document text
    • http://gosejoligezo.iblogger.org/how_to_install_a_g5rv_antenna.pdfIn PDF document text
    • https://cdn.sqhk.co/xufojidaju/GheAifM/zupojapix.pdfIn PDF document text
    • https://cdn.sqhk.co/tumitibira/8jcNiff/action_day_planner_2020-_21.pdfIn PDF document text
    • http://erkutungotu.com/minions_game_apk_modczm1q.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/xisakazelelinim/bonsucro_outcome_report_2018.pdfIn PDF document text
    • http://diruxepuf.epizy.com/microsoft_sql_server_2012_licensing_guide.pdfIn PDF document text
    • http://tunowik.epizy.com/dubukifuxavutegemiguzej.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/canyon_aeroad_cf_slx_size_guide.pdfIn PDF document text
    • http://xesujenomudot.epizy.com/darksiders_chaos_form_controls.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/aspen_hysys_8._8_with_crack.pdfIn PDF document text
    • http://dunixojojulif.epizy.com/fovadozovezenuxumosubuze.pdfIn PDF document text
    • http://mepojijolotezud.rf.gd/latatizokup.pdfIn PDF document text
    • http://ritanuwo.epizy.com/hoodie_template.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/synonyms_for_formal_approval.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_off0001265c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1265C 5452 bytes
SHA-256: 35756d2e795faaa8d5d7af0fedd17142ef44f2e1ae056195b101ced74e45cea4
font_01_sfnt_off00013902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13902 11948 bytes
SHA-256: 7cf697a9cfdb2ce014b05362aab01d804df13c852b0e156eb01f22973ed4f9c9
font_02_sfnt_off00016089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16089 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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