Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ce695c466d79e9c…

MALICIOUS

PDF

68.8 KB Created: 2020-12-18 15:02:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9292e4c5b10bdd9645e28e897f332753 SHA-1: 77661f1611285b4dfa09da0b8e794eb10db43d76 SHA-256: 6ce695c466d79e9c8ef8e5cfccd48d138cc7e7e9d8ef66125c0c77bc1650b97e
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting it is a claim form template, aligning with the SE_INVOICE_LURE heuristic. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be tricking the user into clicking the malicious link, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://traffking.ru/aws?utm_term=hcfa+1500+claim+form+template In PDF document text
    • https://verefatodefi.weebly.com/uploads/1/3/4/7/134722939/gijurezaweforop-xafopavi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379731/normal_5f8fa78a36d7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480383/normal_5fb2ac3a80149.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410191/normal_5f93da93c0088.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403806/normal_5fdc49e89f7cb.pdfIn PDF document text
    • https://texifafotolatip.weebly.com/uploads/1/3/4/7/134764930/kiledipifototo-tumima.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc52962bdb33045eedddf3c/t/5fcd437a6f0099009e7103cf/1607287676880/era_sosial_dan_budaya_dasar.pdfIn PDF document text
    • https://s3.amazonaws.com/fosawef/65560524834.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc58e3dbd14ff0dd2bc3439/t/5fc8d07bdcb5b2607984eac9/1606996091994/zombie_exodus_safe_haven.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d766a3bf4b14aba8e616/t/5fc139e5e6d49a06bbbea5da/1606498790262/61193391972.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/add_action_icon_android.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcea56b7e980a32d6872967/t/5fcfc3c7babc8c5a60e55c35/1607451599221/91441065151.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe18d63485235c868d54ac/1606293719361/3673523086.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcdff26e1a8af6ff4aec5c5/t/5fcf6ae005f6f2780759f9cc/1607428837295/fastest_bowling_in_ipl_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/regulatory_reporting_requirements.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/52078283787.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4c3b35bcb0228a29b3dce/t/5fcb27110814be4f73e4c382/1607149330281/wuwilovivuze.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE91 5264 bytes
SHA-256: 0dcf39acf1e68621693664bc3a970b973f6bc538e6614c403bbd6cdde5a1baed
font_01_sfnt_off0000e06b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE06B 11304 bytes
SHA-256: c5cd5ff6c42a90dc0ddcbed2c1efe7c216cf264898ee90498a1d0edda9aa6c2f

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