Malicious PDF — malware analysis report

Static analysis result for SHA-256 77fe13df618ec07f…

MALICIOUS

PDF

70.1 KB Created: 2020-12-05 19:15:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6deb64d3545e1e28dbda18a0c7d21826 SHA-1: b9be94b1ce7a6f41820a84008492d6b8a266b048 SHA-256: 77fe13df618ec07ffd18b5fdaddea206624ad58d1a582299445f990fe2c3cbbb
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 0.9997

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://traffking.ru/strik?utm_term=mazda+commercial+song+lyrics PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374022/normal_5fbc19aa20c8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416128/normal_5fa1891abc8f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391340/normal_5f9ea10b283ff.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/5fbce344be7cfc36344e8aaf/t/5fbe078818e72e5fdb9dca34/1606289290196/lowes_survey_rules.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1e926d9-0990-47ba-b937-81fbd1068a6c/22896515866.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d1bb1a9-90e2-4240-a471-78c6a9f9638a/55770157071.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/80494446269.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3426faffbf90a66f9ae2f/t/5fcaf65d26a2be7f6ddb54aa/1607136862384/dozixaxaron.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc32e547848ba205d276709/t/5fc5150a145a8629dc522808/1606751498949/kenneth_cole_watch_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1de57af4-7386-4131-b1cf-6148f6fc733a/ruby_cinema_in_franklin_north_carolina.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/bumoxezepedilopelilolire.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e335a5bc066edfa5a857/t/5fc0f2329d79364840af7240/1606480435880/nursing_diagnosis_for_comfort_care.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_off0000c7d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7D6 5124 bytes
SHA-256: 262d4960aeba5809b641333b0acff5dbb7e30f51311f60d3946ff557d15602b0
font_01_sfnt_off0000d927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD927 10832 bytes
SHA-256: 111e1bb809481bc07484f3d32087c7194e1935e5278daf8ca5885bce4504d75c
font_02_sfnt_off0000fdc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDC5 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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