Malicious PDF — malware analysis report

Static analysis result for SHA-256 2254731ee49c4fb6…

MALICIOUS

PDF

79.9 KB Created: 2021-03-18 17:18:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 563e2e5e4981b558721f5b27704f933e SHA-1: c2f4f6dc82ec00e886bc960bec6e173920a84787 SHA-256: 2254731ee49c4fb6f8daf17bfd76923e3d9189e3520e51e8768099a17ae2829a
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high probability of malicious intent. It contains an embedded URI pointing to 'bologen.ru', which is likely part of a phishing or credential harvesting scheme disguised as a search result. The document body is heavily obfuscated, but the presence of external URIs suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://bologen.ru/award?keyword=kabbalah+herm%25C3%25A9tica+marcelo+del+debbio+pdf PDF link annotation
    • https://cdn.sqhk.co/pekuwalixeso/bopihhi/bhojpuri_bhakti_hd_video_songs_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/letaziseb/bjbjjgj/history_of_cuba_book.pdfIn PDF document text
    • https://cdn.sqhk.co/paxepedamaxa/7geTgjK/child_birth_delivery_video_free.pdfIn PDF document text
    • https://cdn.sqhk.co/japewaturu/igYYChb/7_deadly_sins_grand_cross_tier_list_japan.pdfIn PDF document text
    • https://cdn.sqhk.co/liregevo/1GQsIha/fobisida.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwonukunav/eijgcbn/dining_room_wall_decor_ideas_with_mirrors.pdfIn PDF document text
    • https://cdn.sqhk.co/rivogigaweb/hh8LjV1/talowafagepadavop.pdfIn PDF document text
    • https://cdn.sqhk.co/takabalal/cBihyMQ/crecimiento_microbiano_definicion.pdfIn PDF document text
    • https://cdn.sqhk.co/furikute/icTFNVq/osmand_offline_travel_maps_navigation_v3._4._0.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/tinezedu/eviction_notice_template_scotland.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1384efcf-9bcb-4188-8cca-d3bc51a463b9/18336232574.pdfIn PDF document text
    • http://vagakidid.epizy.com/bates_clinical_examination.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26b1b72a-b218-4bd0-9475-84f6ef0a4ae9/gusawaxugotexefezosopoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2dba4b4-8b89-4ce6-9670-7fd85d53f75c/xovajobegavugopesefotel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fff99878-c54f-4a69-a420-0dc199483b77/how_to_write_an_illuminated_manuscript.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/buddha_and_his_dhamma_english_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/casual_leave_form_for_teachers_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/sabasudunebalusu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad0e0948-4e5c-44a0-ab69-85f47a1c4422/sazekorulakesemutosonu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7224b210-b951-4ff8-89ea-37ae3cb3c9b5/67148972009.pdfIn PDF document text
    • http://rorewoj.rf.gd/belchamps_uniform_shop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f77e7e6-dda4-4380-be3c-f512042c0ac6/the_magic_mountain_movie_2013.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6362a7ab-e6bf-4a8e-a2ed-ca9a75cd71d5/tarawuk.pdfIn PDF document text
    • https://s3.amazonaws.com/jidagafinuxesu/black_clover_opening_8_full.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02ce7bc7-d4af-4820-b02a-8c4e87f89903/zuzalitu.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_off0000e89b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE89B 5152 bytes
SHA-256: 9a951a454daf342ed4b692283c90b931da1b9b27e3b9596b6fb995c4cc04e9c0
font_01_sfnt_off0000f9d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D2 12928 bytes
SHA-256: ab3968e4e61035df9fd0f9f042f16fc52ad3d2a47ca39dda39f463f5ae3e44c5
font_02_sfnt_off000120ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120CE 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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