Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b38ed772c3eb744…

MALICIOUS

PDF

82.5 KB Created: 2021-03-03 01:58:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: b8819b1ca8ab7902630d062a07a8ff86 SHA-1: 7894d044d678c9f6c670ab2dad1ac430ec952fb9 SHA-256: 9b38ed772c3eb744818dc67aae3d0771824a4a09bea15ee43b3c4d2696903dc5
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site for further exploitation. The document body, though heavily obfuscated, suggests a lure related to product information, consistent with phishing 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://jumiwimov.ru/123?utm_term=which+gaggia+classic+to+buy PDF link annotation
    • http://subfamjtii.site/zigizivolataduvau892q.pdfIn PDF document text
    • http://yoga-fitness.space/how_do_i_get_my_act_workkeys_scoresqm42q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383798/normal_5fe4ba2ec08c0.pdfIn PDF document text
    • https://cdn.sqhk.co/lozuzupadis/ibVggBD/super_beauty_world_bragg_boulevard.pdfIn PDF document text
    • https://cdn.sqhk.co/noxomosanena/8zu0Kji/44923333283.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475572/normal_602291caa0da1.pdfIn PDF document text
    • https://cdn.sqhk.co/saligoliti/8CNzjP9/excursiones_para_cruceros_por_libre_islas_griegas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481527/normal_5fdf9bac99590.pdfIn PDF document text
    • http://distornyup.site/ver_el_efecto_mariposa_online_latinof8po6.pdfIn PDF document text
    • https://cdn.sqhk.co/siripeka/hb3Emhh/best_songs_of_2020_so_far_hip_hop.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380857/normal_5ff7b86c968e4.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/tiniruru/69557132505.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/radojazametuma.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/dell_poweredge_2950_memory_configuration.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/battlefield_bad_company_2_mobile_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/cummins_qsc_8.3_marine_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/95901685707.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_off00010687.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10687 5220 bytes
SHA-256: 4b633a58e7d2ec3b7e49293775b46574eae235bc66b445797c91c6176d83b8fd
font_01_sfnt_off00011865.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11865 10532 bytes
SHA-256: 8d9c02c5b91cdfb6bf1b10620092c21ca3ebe4e8c94c3412726f3fdc8bded7e6

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