Malicious PDF — malware analysis report

Static analysis result for SHA-256 9070888e68ee7364…

MALICIOUS

PDF

88.0 KB Created: 2020-12-22 03:10:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 751e715003d6ecaec8203d1fd8c4ced9 SHA-1: d186d4d9bf64778206ce23a35e9e3397be8f365b SHA-256: 9070888e68ee73643ace629e6e4beb9d0bbfa487a3aacf5a0b1451a133512e85
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, 'https://traffnew.ru/aws?utm_term=waste+management+pdf+presentation', is likely used to deliver a secondary payload or redirect the user to a phishing site. No scripts were extracted, but the PDF structure and embedded URI suggest a phishing or malware distribution attempt.

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://traffnew.ru/aws?utm_term=waste+management+pdf+presentation PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384832/normal_5fd1bb5da8054.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462037/normal_5fa6e81ca59d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497071/normal_5fae5f099f712.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379359/normal_5fcc61135d9ed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485570/normal_5fc4b0059e3ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412899/normal_5fd3385a29131.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482636/normal_5fba48ab4a57e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468837/normal_5fb8e132317cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404290/normal_5f96fcce0006f.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/5fdfe9c7f67c863bcd18f266/t/5fe0a7897185ee572d7d93d8/1608558476114/4383624701.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e88b8139af0376454bd0/t/5fd16f9523f2866aa37dc2f9/1607561111227/zimimivuzapazegatasubip.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4dbb3f75b16643cb9434/1606372796198/vuvon.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd018d64be903ae6410b90/1606222222595/parenting_styles_quiz_worksheet.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_off00010f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F7F 5132 bytes
SHA-256: d24356eea20548c3d3898bf1c04a8e850c2dbb4e896a2b21c74e80869fb5d7ff
font_01_sfnt_off000120df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120DF 10568 bytes
SHA-256: 0ad3af23ccc7444e8758f73957dd823202149ba2da4621504b0d9409173b97ca
font_02_sfnt_off000144c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144C6 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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