Malicious PDF — malware analysis report

Static analysis result for SHA-256 678e6271335e1f48…

MALICIOUS

PDF

233.6 KB Created: 2021-05-15 23:21:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 3fa15440a9eb4a30ac30fbc859ab8238 SHA-1: c323b25f071050df805ae17cb649fcd785bc706f SHA-256: 678e6271335e1f4809191497a3e245465819deb90871360330d5563fcec99edd
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 0.9936

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/strik?utm_term=libros+de+derecho+procesal+civil+pdf+gratis PDF link annotation
    • http://suvuxivenorum.mypressonline.com/54927084909.pdfIn PDF document text
    • https://cdn.sqhk.co/numovasovev/aoJJ3ha/rigezipuxivejo.pdfIn PDF document text
    • https://vumopofusub.weebly.com/uploads/1/3/0/8/130874587/6564713.pdfIn PDF document text
    • https://cdn.sqhk.co/gubogezemazo/igyIjcX/science_et_vie_junior_abonnement_canada.pdfIn PDF document text
    • http://kutegexuwudaro.getenjoyment.net/ciencias_naturales_bachillerato.pdfIn PDF document text
    • http://sipivide.iblogger.org/electron_configuration_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/bupitagalir/Bijq7ij/70548557866.pdfIn PDF document text
    • http://kitujozonu.22web.org/6074420113.pdfIn PDF document text
    • https://xujeloza.weebly.com/uploads/1/3/4/0/134096435/tufurigirajiw-xafinuna-sonaliji-fujafaluzisiruj.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
    • http://nerepigov.rf.gd/66091915868.pdfIn PDF document text
    • http://vesedakowata.onlinewebshop.net/new_criticism_features.pdfIn PDF document text
    • http://kasapesokegu.rf.gd/lofoma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16c560cc-a65f-47e2-a19c-4685754d99d7/project_management_software_tools_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d6cb58c-762f-45f8-8df4-4e58f9e0fb4f/muvidanizuwifokom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/871d0229-f7de-4ba4-b599-91645335f9b0/family_therapy_theories_comparison_chart.pdfIn PDF document text
    • http://ribojar.rf.gd/blood_type_o_diet_chart.pdfIn PDF document text
    • http://zisukuvi.atwebpages.com/business_environment.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/brother_in_arm_3_apk_games.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fe71b41-0957-40bc-ba8f-4be250b3c3bb/pride_and_prejudice_movie_2005_imdb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13401f00-02ca-47b6-98b0-b2e6f0d9af4e/jonomamibesemat.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/9178069018.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00034d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34D31 5240 bytes
SHA-256: 99fb20c2989cdbe64b3ef837562d5375a5edb271bb29af291534e48e076010dd
font_01_sfnt_off00035f15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35F15 13204 bytes
SHA-256: c712cf6de67859e4ee27cc27494fc723c28a666e68ca721a832d5ed30168c5de
font_02_sfnt_off00038852.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38852 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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