Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb72d3f8b63df619…

MALICIOUS

PDF

77.4 KB Created: 2021-03-17 06:59:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 69eb5d3c0335730319c5a9928700a8bd SHA-1: 5cfb7835c95a7685da02afd9f517f4a9113b5b9c SHA-256: fb72d3f8b63df61973e65ef1689639d0096a9184055d21e7a72cca612af965ef
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 0.9988

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://seumenha.ru/123?utm_term=bengali+to+english+dictionary++for+pc PDF link annotation
    • http://winfreeiphone.xyz/britney_spears_american_dream_hackd1kva.pdfIn PDF document text
    • http://tupedesixavero.iblogger.org/bavenuwopotonamuninivu.pdfIn PDF document text
    • http://o-karte-kopilka.com/gekanawibepudfqfo.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/pasawe/fafudexufitoxirora.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/kabariterivusudimolaber.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/does_godaddy_have_free_website_templates.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b998c7c-9b87-4980-8993-51e921a3c7d8/good_warm_up_exercises_for_seniors.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/laboratory_safety_data_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31677fcd-94ff-44bf-b262-b34e34787767/wilunowubezidozitoluk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bfd9281-ae28-455c-b622-b744e30215ed/2902985092.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f01b4ec8-5d64-4854-a2cc-7741ba7a0b87/dokejuguxoxolobuvol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/324a9c77-e0bf-43cb-a454-1d7d32269ebc/what_is_dw1_transmission_fluid.pdfIn PDF document text
    • http://rikonobawo.epizy.com/xilewomaxederizove.pdfIn PDF document text
    • https://s3.amazonaws.com/lawakux/what_is_a_good_gpa_mcgill.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8593cf7-fdbf-4654-9c34-a0a8039190c9/woribor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54051a17-7c8d-4a65-b383-bd7eb2733726/historia_natural_de_la_enfermedad_de_la_enfermedad_del_covid-19_de_leavell_cleark.pdfIn PDF document text
    • https://s3.amazonaws.com/wemofodi/timeline_of_us_history_1990-present.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/marriage_certificate_form_online_gujarat.pdfIn PDF document text
    • http://viwukekev.rf.gd/79901157943.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91d22344-9386-427d-af92-a5af6ac561ae/4992907603.pdfIn PDF document text
    • http://kidagemomosate.epizy.com/17759436196.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0846defe-8de3-4697-8a2a-62c9224f65e0/kibikifitokuzazixepup.pdfIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/sample_case_study_report_in_psychology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/117ba06d-0b2a-443f-ba81-a4f959a2de47/hills_c_d_dog_food_canned.pdfIn PDF document text
    • http://zugotival.epizy.com/microsoft_outlook_filehippo.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE5C 5568 bytes
SHA-256: d22c2151f00146fe80de93442a50cc4f7ea35ff45819ffeef3eba268696efc7a
font_01_sfnt_off0000f151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF151 5240 bytes
SHA-256: 2bdc3b9bc8339f3f8cf71ec99474d2084a11d96e7c09979888f024ef67e133a8
font_02_sfnt_off0001025a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1025A 10800 bytes
SHA-256: b348b6ee894d2b99e156ca89d2e6e5ff9937c67bf5821517c0f1a0a2c6f25d00

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