Malicious PDF — malware analysis report

Static analysis result for SHA-256 59dece381cb98868…

MALICIOUS

PDF

79.1 KB Created: 2021-05-21 14:48:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 58687341d78da8a0f161d39645d57210 SHA-1: ca74b746ed314781254bd01f756aa72139cf62b7 SHA-256: 59dece381cb98868fcd09e48d4683b4ccb7cccc863720f36d7b85ae640c254d3
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 0.9996

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://maypoin.ru/strik?utm_term=whirlpool+gold+series+dishwasher+cleaning PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4406170/normal_5fdad9c18e853.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378852/normal_5fd65435c6507.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408997/normal_6068ef5c3aebb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401712/normal_6049aad23b779.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401985/normal_5febe4b603906.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426957/normal_5fdfddea99b78.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427526/normal_5feb4cbb74476.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472775/normal_6035c71e6a27e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425484/normal_5fe09ec6928ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445729/normal_5fdc4340a7207.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389376/normal_6009d417376d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383451/normal_6049b83e2bd02.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f54106a-f1b5-41c6-87ef-6379a1f08cc4/fubajuwajetaximimunu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6435299f-1b61-4d9c-9bba-91e0005663d7/why_looks_are_the_last_bastion_of_discrimination_style_and_structure_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/159fdeb2-bcf8-481b-9257-ba2aa59486d7/fojakoviwel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c721a2bc-ecbe-4316-ac1a-3ccb83d48f83/kasapipijuxurug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77d52838-ed33-4983-859e-366230142155/39098300219.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/459a842c-f4f9-43a4-a2b7-b59a199fe8de/define_impulse_force_in_physics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bfd185b-7795-4014-9f1c-4eb39a59bb9d/los_juegos_del_hambre_2012_pelisplus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94aa3648-bf71-432c-bf0a-636af53e0097/xakaluzuwitusumitisef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02ddab88-1704-40dd-a188-4493788ffc24/un_metro_cubico_cuantos_centimetros_cuadrados_tiene.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af120ec6-8097-43ad-9fa2-4df3543c016f/bosch_silence_plus_50_dba_will_not_drain.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_off0000f9da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9DA 5440 bytes
SHA-256: cdb69346728e28539aeda043281c0c445656f293dcbf415e2ae9224572394293
font_01_sfnt_off00010c6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C6F 10004 bytes
SHA-256: 25d805c1aded2c9dc2253752d8f3163c4e436d6bd6b59481067909a013ff7122

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