Malicious PDF — malware analysis report

Static analysis result for SHA-256 a272e584c43d23e4…

MALICIOUS

PDF

79.2 KB Created: 2021-02-23 02:48:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 83cb6d173d0bbf5dd915e616f969125a SHA-1: da4c71d51bcf50415fb8aa99a75d257b17e4a9d7 SHA-256: a272e584c43d23e4430ef13165cce249ab5ff12e09a597fe530f4498905fb40e
96 Risk Score

Malware Insights

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

The PDF file contains a URL that leads to a download for Minecraft PE, disguised as a legitimate software download. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to distribute malware or unwanted applications. While no scripts were directly extracted, the PDF structure and embedded URI heuristic point to a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jacksth.ru/wix?keyword=minecraft+pe+12.0+apk+download+v1.14.60.5 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366980/normal_602c9592372f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481515/normal_60175ddd2dc36.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450896/normal_5ff21e51ee6be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488806/normal_6010802472264.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373788/normal_5fe75bfcab110.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457302/normal_6011eca70ccbc.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://s3.amazonaws.com/vibuvomomuv/market_research_reports_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/wujanozo/tepigizamaxopodazabe.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/ligewifedilepitubi.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/57744849496.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/vetaku.pdfIn PDF document text
    • http://mapitixonemo.epizy.com/2d_barcode_font_free.pdfIn PDF document text
    • http://wagopof.epizy.com/relative_vs_absolute_dating_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/gebedenesodel.pdfIn PDF document text
    • http://nimozan.epizy.com/ill_guided_definition.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBD2 5704 bytes
SHA-256: a984337862de37f2d683da2981426904dd199d26db4f74c57b524044d3a51d97
font_01_sfnt_off0000df71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF71 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000e7fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7FE 10276 bytes
SHA-256: 4b2f2d5688560bd60272dc89eac67338aa12645acec20053051a0c1e9ceba054
font_03_sfnt_off00010b66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B66 16312 bytes
SHA-256: 975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15
font_04_sfnt_off000120f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120F1 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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