Malicious PDF — malware analysis report

Static analysis result for SHA-256 62e8ffa1778e8cca…

MALICIOUS

PDF

89.9 KB Created: 2020-12-05 21:05:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 50ccbbeb3c1275e42fd1652ddd43d813 SHA-1: dfc5ab1fcf57c52148fe0a050c3790da0effc322 SHA-256: 62e8ffa1778e8ccaf068490c358b835e64e8a7b9d4d842f39a2b5b282ff7fe17
162 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. It uses an urgency-based lure. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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://cctraff.ru/123?utm_term=dnd+5e+passive+perception+traps In 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://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf56547acac6192ab7ca16/1606374996999/31429991692.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e50de252-ad65-4efa-8051-b5415e620a8f/dijinukajamoni.pdfIn PDF document text
    • https://s3.amazonaws.com/padoragog/archetypes_found_in_beowulf.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc524ccc30a162e0c6e112f/t/5fcb922811c29807e6db8a57/1607176745204/free_parental_control_app_for_android_phone.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0f609d7936484056124f/1606291297501/marotebuwenuzebidir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c0b9fea-7436-407b-9810-c623760ee2c1/5_centimeters_per_second_ending.pdfIn PDF document text
    • https://s3.amazonaws.com/vebogotexaf/consonant_sounds_worksheets_kindergarten.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc661f368612547ed837cee/t/5fcb90221ef6d1662ff0de6a/1607176226715/crossy_road_game_code.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e9ac6af-ddb2-4c97-8a2d-185385a46e00/harley_quinn_arkham_city.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfd008c14dfd36feeb1b6e/t/5fc0f1a8f81c9a2a0cc45dfb/1606480297133/physical_data_model_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48501a44-68e8-4b97-b851-3f5e86befb6c/6451824390.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/play_games_for_free_girls.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5ce53c6ccf69f355d3b7/1606376677759/tp-castt_poetry_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/6054429966.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc00a5311f6a4198480ec6e/t/5fc1c69e9b1ed035381db982/1606534815449/fundamental_statistics_for_the_behavioral_sciences_9th_edition_free_howell.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7b98048c1673e559ebd3e/t/5fcab8f588885701c6e0ed55/1607121142419/my_pillow_sheets_walmart.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_off000115a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115A9 5008 bytes
SHA-256: 1d955ee98cf85d0b8ee7ac2377ff23bc8413be500373309fa9b73b12a0558945
font_01_sfnt_off000126c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126C3 10872 bytes
SHA-256: aef571af9916dcba991a31397c6acd1fb793efab3e09e08f657337b47b9219b0
font_02_sfnt_off00014c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14C02 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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