Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d7ea225bf695662…

MALICIOUS

PDF

462.7 KB Created: 2021-03-07 10:41:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9685950f2f78ac9a9e72c6514b13b867 SHA-1: 120c862e579d66beb170a70b74768bbbe98b0ef4 SHA-256: 6d7ea225bf695662726c7d829d4fe7d789c3514ebd72b7eff07536ef4311fdca
144 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate a lure to install a browser extension or update, combined with urgency language, suggesting a social engineering attack. While no scripts were extracted, the presence of multiple external URLs, including one with a suspicious domain, points towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8070

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://crophysi.ru/aws?utm_term=20+000+leagues+under+the+sea+chapter+1+summary PDF link annotation
    • http://lufafawowe.iblogger.org/vomuvafarelugoguwewasasun.pdfIn PDF document text
    • http://sallehub.xyz/akuntansi_perusahaan_dagang_kelas_12kdbkm.pdfIn PDF document text
    • http://form-lnstagramcopyrightservice.com/306107120878pghe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385617/normal_5fe5e700662da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380854/normal_603812bb3efc9.pdfIn PDF document text
    • http://senigudalow.iblogger.org/calendar_2019_malaysia_monthly_template.pdfIn PDF document text
    • http://duperalenow.22web.org/design_patterns_in_java_with_examples.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423430/normal_600ac86ae1218.pdfIn PDF document text
    • http://shimano-stradic.ru/249175499708dxl8.pdfIn PDF document text
    • http://mukesuzovuvo.22web.org/mathematics_vision_project_2._4_answer_key.pdfIn PDF document text
    • http://timogefubor.22web.org/glass_sheet_backsplash_near_me.pdfIn PDF document text
    • http://nubebukexowi.66ghz.com/business_meeting_plan_template.pdfIn PDF document text
    • http://bugakesebe.iblogger.org/business_owner_job_titles_list.pdfIn PDF document text
    • http://prequester.online/samsung_smart_camera_app_ios_135pzud.pdfIn PDF document text
    • http://vilopeg.xyz/4140990209z9a9d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tununik.epizy.com/53101949967.pdfIn PDF document text
    • http://nixixik.rf.gd/1995_mercruiser_4.3_oil_capacity.pdfIn PDF document text
    • http://disetorabagubed.epizy.com/15020468336.pdfIn PDF document text
    • http://vinepefep.rf.gd/band_of_brothers_season_1_utorrent.pdfIn PDF document text
    • http://lusalelafujijo.epizy.com/official_samsung_galaxy_s9_charger_cable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a61228c-43f0-43d6-8c40-8675aaffd1fb/71359292660.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f2e3162-20b6-46eb-a26a-a508ab1a7408/difexivo.pdfIn PDF document text
    • http://tizepadeda.rf.gd/85585702788.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0b3185d-f619-4a7d-8a9c-e6af22eb49f1/kubota_l3010_oil_change.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_off0006ed20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED20 5820 bytes
SHA-256: e2d8d064c5f550f7f5b9caafdb3e1b3b248787bbc4492ea2bdab3a8db346304d
font_01_sfnt_off000700dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x700DD 11960 bytes
SHA-256: 0742e5858657b087f377a20ca69b53b5739371d25dd13bc6a62102e8deed697b

Open this report in the interactive analyzer, or submit your own file for analysis.