Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0173deb9f4fefaa…

MALICIOUS

PDF

80.5 KB Created: 2021-02-24 09:57:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: f4ca49d3664692b50d37dfc04bb5d681 SHA-1: 2ed1194e34d75d1c63e58917885ba46cb3e13e37 SHA-256: d0173deb9f4fefaa9646797f129049148ad2d0ffc85448610a2def890b81fcb2
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://seumenha.ru/123?utm_term=what+is+educational+management+and+leadership PDF link annotation
    • https://cdn.sqhk.co/fiwujumejuf/niaNPhf/minetest_jogar_online.pdfIn PDF document text
    • https://cdn.sqhk.co/feripamapuv/jdtX0ha/86569996471.pdfIn PDF document text
    • https://cdn.sqhk.co/gidenateg/gmsGQ4U/hearts_deluxe_twitch.pdfIn PDF document text
    • https://cdn.sqhk.co/jotapepikota/jjahfW3/xanegukisilukibaz.pdfIn PDF document text
    • https://cdn.sqhk.co/pajerelo/ghjguTm/58411070058.pdfIn PDF document text
    • https://cdn.sqhk.co/fepexeguma/chgjBbI/14432637539.pdfIn PDF document text
    • https://cdn.sqhk.co/vujaderaz/jdiajjo/novel.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzezufe/iawoOgf/33559752187.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/napoledunadigo/how_to_change_ear_tips_on_airpods_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/barcelona_vs_real_betis_5-_2.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/73450073875.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/heroes_of_the_storm_qhira_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/android_device_manager_application.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/gixoganavadov.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/rubagamiwozasalubide.pdfIn PDF document text
    • https://s3.amazonaws.com/pajeriramal/jidekuxolinegitanozisi.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/19401069480.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/how_to_crochet_hair_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/lezedaposizeza.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_off0000fcc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC7 5500 bytes
SHA-256: f9aa6d0b73487886bcd570a582e1318771733e08bdabef1aeb4a68415a1608c4
font_01_sfnt_off00010f5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F5D 10940 bytes
SHA-256: 3ac4268b5e0156c37958af15a558d720f13388f422b0d11e9271128722288105

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