Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ceb280617eb0003…

MALICIOUS

PDF

339.3 KB Created: 2021-05-20 08:43:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9ad7935c64bae56110d8611e9827ab30 SHA-1: 5923bad1a3fde1b128c8de02380ddb326d0a246e SHA-256: 0ceb280617eb0003d66d05a74c7366d681ddba5809764015927665ce8fb63950
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 0.9830

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://kuzutuzo.ru/strik?utm_term=matem%25C3%25A1ticas+para+administraci%25C3%25B3n+y+econom%25C3%25ADa+solucionario PDF link annotation
    • https://nasavizar.weebly.com/uploads/1/3/5/3/135322571/10c614457ecd78.pdfIn PDF document text
    • https://fodenipijuf.weebly.com/uploads/1/3/4/6/134618914/4c42328fb393.pdfIn PDF document text
    • https://zizusufake.weebly.com/uploads/1/3/4/6/134646877/a25854ef4b1f.pdfIn PDF document text
    • http://www.typoland.com/http://www.typoland.com/designers/Lukasz_Dziedzic/CopyrightIn PDF document text
    • http://www.typoland.com/In 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/078ff9c7-6c66-4707-aa11-e203264a0079/dubepopukubi.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/89340644307.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf38ebaf-c9b3-4aba-935f-3af313a68971/what_is_a_positive_quote_for_today.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7888f375-0fcc-43c4-b527-507a752a3e27/partituras_para_piano_canciones_faciles.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/grief_cycle_bargaining.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/wecroak_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/70730612907.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/geritusarixevezebuvi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c45779e-7765-4bca-aea0-d3371ed08c4a/38978210038.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c904439e-2897-47bb-bdfd-d092cf9fb607/5224264619.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c46dc0e-a1bd-49da-bfa9-f522e1eef9f1/6.0_powerstroke_external_transmission_filter_housing.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/systemverilog_interface_bind.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb23f9f7-cc49-4350-b7f3-76bf785ed84b/how_many_mos_does_the_marine_corps_have.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/bevitaxan.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/panitetitivijus.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/free_monthly_calendar_template_august_2018.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_off0004dcd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DCD6 6168 bytes
SHA-256: 9f07a400e75c177e496f395344003d4a7545e118b36bf59d530d47f9bb3550f8
font_01_sfnt_off0004ec75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EC75 5752 bytes
SHA-256: 7cff741a25e00c45752de935fc07102f8808a42c9f01d457f8ddde4eb0aaa528
font_02_sfnt_off0004ff29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF29 18824 bytes
SHA-256: 0ea60bc7226bbb65ae90c4305dbe57bc5377449daf4d6840f547696d7a00b6c0

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