Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6c5573f1f3cf9ca…

MALICIOUS

PDF

77.0 KB Created: 2021-05-21 22:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a8401ce8569f8efbb51e77d0251ad813 SHA-1: 962fd7b96fccbf429c787b0d278dfc274eca0893 SHA-256: e6c5573f1f3cf9ca47a0fa865483cf7b83e4c505e978c0fb41738bd7d5a977d2
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 0.9995

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://midufefew.ru/strik?utm_term=%25D1%2583%25D1%2587%25D0%25B5%25D0%25B1%25D0%25BD%25D0%25B8%25D0%25BA+%25D0%25BF%25D0%25BE+%25D0%25BC%25D0%25B0%25D1%2582%25D0%25B5%25D0%25BC%25D0%25B0%25D1%2582%25D0%25B8%25D0%25BA%25D0%25B5+5+%25D0%25BA%25D0%25BB%25D0%25B0%25D1%2581%25D1%2581+%25D0%25BC%25D0%25B5%25D1%2580%25D0%25B7%25D0%25BB%25D1%258F%25D0%25BA+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25B1%25D0%25B5%25D1%2581%25D0%25BF%25D0%25BB%25D0%25B0%25D1%2582%25D0%25BD%25D0%25BE In PDF document text
    • https://midufefew.ru/strik?utm_term=%25D1%2583%25D1%2587%25D0%25B5%25D0%25B1%25D0%25BD%25D0%25B8%25D0%25BA+%25D0%25BF%25D0%25BE+%25D0%25BC%25D0%25B0%25D1%2582%25D0%25B5%25D0%25BC%25D0%25B0%25D1%2582%25D0%25B8%25D0%25BA%25D0%25B5+5+%25D0%25BA%25D0%25BB%25D0%25B0%25D1%2581%25D1%2581+%25D0%25BC%25D0%25B5%25D1%2580%25D0%25B7%25D0%25BB%25D1%258F%25D0%25BA+%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25B1%25D0%25B5%25D1%2581%25D0%25BF%25D0%25BB%25D0%25B0%25D1%2582%25D0%PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d066f9f-0190-49d8-a9a3-3c8f1e7ef999/10_ejemplos_de_sales_halogenas_mixtas.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/auditoria_contabil_livro.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/vebubijanuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bc9ae64-50a0-4eae-85dd-11148a9701e1/how_much_does_audi_e_tron_cost.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb1e387c-e843-4ee0-8727-137c260f933c/how_to_open_pocket_juice_charger.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/avast_antivirus_app_free_for_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7cacd60d-46d7-4ccc-8b7c-9dc3ecb302fd/sharepoint_tutorial_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fb468be-c218-4f1b-ab9c-191724b2a053/play_wheel_of_fortune_online_free_no_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ffb0ba2-fca0-49b6-aba5-3f5de5fa4064/fesafolufurezexagalodos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c0f9185-a0c8-4f4e-a065-da9603545e8c/linux_shell_script_find_string_in_variable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2215fc4e-b043-4f81-8aa8-e626e4dce5fa/how_to_use_google_maps_gps_offline.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2b193bd-fc32-4dbe-bda6-f494212aa9b0/atomic_structure_crossword_puzzle_answers_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72df3e2a-ebdf-4df8-b273-63e678dd92b3/kegelolo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8c4b3bc-4c6b-4d8b-ae58-566384f5ceb3/ruger_p95_grip_tape.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/85394274356.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2eccd9cb-fb00-46ed-b6d6-223811d1cae9/fowiloj.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/degos_disease_case_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9af4f85-c9dc-4364-951d-4d3731a0865a/kedatedepuxirozadakev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a543bf27-0f71-4d66-addb-e61a4cf45e5c/27246952505.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/free_resume_templates_for_macbook.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/curse_words_high_intelligence.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/hermes_blind_stamp_and_year_reference_guide.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_off0000df11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF11 6076 bytes
SHA-256: 2a1170c076a359b60ef80b1a5d73593999ec4a42762ddd58f389a53377e68492
font_01_sfnt_off0000f36a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF36A 15424 bytes
SHA-256: d0517911f8cfdc2698b027987527ac0216e2ff1cd3677bf64a374b68f1792098