Malicious PDF — malware analysis report

Static analysis result for SHA-256 adccc83c1104c0d2…

MALICIOUS

PDF

80.0 KB Created: 2021-03-31 03:50:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: f9672f7e1e05c5e62a2f2404619e094d SHA-1: 182be947e9e62eda43b86fb2a5a9c86497338b7c SHA-256: adccc83c1104c0d2c6311abe77f4456fc3c430d7af18be4cda8948b4ae71abad
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9997

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://pelibifir.ru/wix?keyword=junie+b+jones+toothless+wonder+free+pdf PDF link annotation
    • https://cdn.sqhk.co/kokojisip/jgyO1BV/mcat_scores_needed_for_do_schools.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369903/normal_602bb011c5502.pdfIn PDF document text
    • https://cdn.sqhk.co/murajefovel/URVFeKF/israel_war_of_independence_casualties.pdfIn PDF document text
    • https://cdn.sqhk.co/sumefixes/jBhf0iZ/general_knowledge_quiz_2020_australia.pdfIn PDF document text
    • https://cdn.sqhk.co/loxowopiv/Hgj9Ohf/fivigokesuvi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464330/normal_60432a25e1e72.pdfIn PDF document text
    • https://cdn.sqhk.co/xufojidaju/fhfYegd/mgm_grand_detroit_poker_room_phone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/koporikog/m1ghiip/87695660489.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/xifabilejilab/what_yellow_color_signifies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57a0dcfe-cbfc-4a84-bd6a-9d7d3a74a9b9/which_function_has_vertical_asymptotes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fd432e8-91b5-4015-8e39-1f8ea2f50bd2/mass_flow_rate_through_nozzle_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32d7e948-285b-45c1-9e37-3e35ffc48412/black_hawk_down_soundtrack_vinyl.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15a98615-bf6c-4192-bd1a-704a3b955121/24275442466.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9ae4339-052d-42c9-b486-00a7e6dc1edf/83765811888.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/79757135905.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f8d2eea-00a6-4516-86b2-1fb633051688/65430321635.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fdaad9d-ba1e-4f3c-b754-89fc1d0883f4/podusunubigetevonoromavu.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/how_to_draw_easy_boy_hair_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/glencoe_geometry_workbook_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb262a9e-2767-40ef-a0ac-ba117287b165/how_do_you_say_it_will_be_ok_in_spanish.pdfIn PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/gidanifebizu.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_off0000f79a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF79A 5216 bytes
SHA-256: 913f1d02ac66236455ab5b8b5b29d8ebc14656dfbf899080e6f5cbcf8f6035f7
font_01_sfnt_off0001095f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1095F 11852 bytes
SHA-256: 225bfe86a94fe566c6cad5301a0ec20f2c1dc19e5d6077d43780e0d0cbb79a92

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