Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1f41cf9b64a6bd9…

MALICIOUS

PDF

79.7 KB Created: 2021-04-30 09:57:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4a7082526d7fd9181b5de47659464a29 SHA-1: d736f05212f91fd3c4d4eedd3a483ad674401364 SHA-256: c1f41cf9b64a6bd9c24b8bd90ae83dc3edcd1ed365ae319337e8facddf177e62
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://lozipotod.ru/strik?utm_term=best+self+propelled+lawn+mower+2020+uk PDF link annotation
    • http://tigibisolefora.mygamesonline.org/4354014087.pdfIn PDF document text
    • http://paxosij.mygamesonline.org/iv_convenio_de_ginebra.pdfIn PDF document text
    • http://jomikifu.medianewsonline.com/beyond_compare_4.pdfIn PDF document text
    • http://maxiteguf.medianewsonline.com/4249741557.pdfIn PDF document text
    • https://walipovagotil.weebly.com/uploads/1/3/6/0/136016519/wixukotiz-jenuzi.pdfIn PDF document text
    • https://vonewujin.weebly.com/uploads/1/3/1/3/131380349/7888638.pdfIn PDF document text
    • http://pakawuwujawo.getenjoyment.net/prentice_hall_physical_science_concepts_in_action_teacher_s_edition.pdfIn PDF document text
    • https://fuxogadukuka.weebly.com/uploads/1/3/4/6/134688721/juwarokevek.pdfIn PDF document text
    • http://opros.xyz/curso_marketing_digital_e-learning5qib5.pdfIn PDF document text
    • http://mimisijuz.mypressonline.com/algebra_questions_for_ssc_cgl_with_solutions.pdfIn PDF document text
    • http://poverkavoda.website/44409594430v89m3.pdfIn PDF document text
    • http://idealica-uficiale.website/autocad_2010_free_for_macbook_pro1s6oi.pdfIn PDF document text
    • https://dopakegufa.weebly.com/uploads/1/3/1/3/131384718/f4482c3f.pdfIn PDF document text
    • http://palupalukagu.mygamesonline.org/simple_qigong_exercises_for_back_pain_relief.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/tokudapele/osha_reportable_accident_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/49968158184.pdfIn PDF document text
    • https://3175e58c-9db9-4d87-bcb9-15e03531d93d.filesusr.com/ugd/c93210_1c43a70f31da4744b7f7e9e51aed4054.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/sojoxamezebosudelupon.pdfIn PDF document text
    • https://8c4778c4-ed17-4cf1-86f9-5448e21c5c15.filesusr.com/ugd/6da380_88b20081104042abb1c116867925774a.pdf?index=trueIn PDF document text
    • https://769966b8-4adc-437e-bba8-f198cf6e171b.filesusr.com/ugd/41a0b6_743ee0c9b6b64b06926f75ba57d0a11e.pdf?index=trueIn PDF document text
    • http://zepuwiz.atwebpages.com/27047586760.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/extern_template_constexpr.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_off0000eb02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB02 5500 bytes
SHA-256: 57edc7d3081ad5605708121028e5159883f2cab970ede4a05d19c587f3ca6e85
font_01_sfnt_off0000fdb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB5 11000 bytes
SHA-256: 84a85aa953d0ec3e54a4b4e595329e643bae0e5e0ebdf40f3956815aa7010c45
font_02_sfnt_off00012310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12310 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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