Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e56f4808bbe787a…

MALICIOUS

PDF

73.4 KB Created: 2020-12-26 14:14:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 4761686b132fb64365666321dfee86bc SHA-1: 314058ad256719f574c40637998b9d0780bbba2c SHA-256: 9e56f4808bbe787a55cdf2a496c131afc190458e2543b274726839d4fbb826ed
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs and is flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body, though heavily obfuscated, suggests a lure related to 'Ansible tower license file' to entice users to click on the provided URL, which likely leads to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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=ansible+tower+license+file PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4424981/normal_5fa7ef5782aef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413590/normal_5fc1aa5a2b243.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379380/normal_5f97e6a168285.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417648/normal_5fd0368db7d6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486742/normal_5fd7bd42930b5.pdfIn PDF document text
    • https://cdn.sqhk.co/kitaparek/hfhaggb/kosug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/biography_of_abraham_lincoln_in_short.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/875dd826-71d2-448a-8f37-27ff5e47a76c/gatonub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/533f84dc-fac0-4533-b9c0-1af8207ea27b/globe_telecom_philippines_load_online.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/27868033678.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dfbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFBC 4884 bytes
SHA-256: def50a6318bbe6a4daeeee48fe7120ef652590ae3ab42f66435eef732d6dca57
font_01_sfnt_off0000f080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF080 12008 bytes
SHA-256: 32940f1e73173ff48542baa8450b0d5e3822fc51737bbe2b4cc97c53c0450443

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