Malicious PDF — malware analysis report

Static analysis result for SHA-256 64865993204d7858…

MALICIOUS

PDF

76.9 KB Created: 2020-12-03 00:18:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7071b3bb465d3f5896186a9c7a48793c SHA-1: b3748140f37512e45b1af6d381cabe3787b47590 SHA-256: 64865993204d7858bb5c668ec3afda02e9bce81beceacaab4d0a1ff1d61ddba8
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 0.9998

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://trafftec.ru/strik?utm_term=sarah+emma+edmonds+book PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370778/normal_5f9540e67b9e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369334/normal_5fad8f6c818d5.pdfIn 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/5fc0f028f9866f3fd2d48e87/t/5fc80eda33333d0cfb3fd8a0/1606946523327/president_ramaphosa_speech_today_live_time.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd1feb352d7073061f173a/1606229995699/new_york_state_hunter_education_homework_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/wetozafogodanumem.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/judememoruzilas.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc50bae7d0c8f249d5b975a/t/5fc76d8f4f9413233b21b466/1606905232887/foxijibelutebuniwofeli.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf570a7acac6192ab7d641/1606375180448/tusafosutuwutulatew.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0bb2c88c99b6d37a6398e/t/5fc1542a145a8629dce256e7/1606505515606/65818724256.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcff6fd334513fae427961/1606221679435/world_series_of_poker_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/who_leprosy_treatment_guidelines_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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e37a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE37A 5000 bytes
SHA-256: a3cd5583da03fc714abd4bf3ffb9a3b5dfff5c60126609f1e2ef21f7a710276d
font_01_sfnt_off0000f431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF431 10868 bytes
SHA-256: 41061251f0f55c8e11ee2b9bf5d245edb0262d102b3c7b85bcfd56f0b1e30b3e
font_02_sfnt_off00011911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11911 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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