Malicious PDF — malware analysis report

Static analysis result for SHA-256 72f707148fa9ee9d…

MALICIOUS

PDF

91.8 KB Created: 2021-03-01 13:49:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: a2dc4066ecfee4ed8ba3822d1ce02219 SHA-1: 7936d44dd271c9461e17c30cde0be8d6e1849989 SHA-256: 72f707148fa9ee9d887067b8c407a8faf712d12d21a557c5c6af7188603db9d9
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing attempt. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading further malware or visiting a phishing site. The document body, though heavily obfuscated, contains text related to 'League of legends patch 11.2 release', suggesting a lure related to game updates.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/strik?utm_term=league+of+legends+patch+11.2+release PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4386080/normal_5fce96182f1c0.pdfIn PDF document text
    • http://dimozakebaba.scienceontheweb.net/how_to_make_a_book_jacket_with_paper.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425005/normal_60076db2a7fa9.pdfIn PDF document text
    • http://newuwedeza.mypressonline.com/how_to_acrylic_paint_galaxy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485572/normal_5fe9900fc1c56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372955/normal_6016083cbad50.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445106/normal_5ff952ffc4141.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412778/normal_5fe309fdbdc8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460966/normal_6028792b9fa68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482869/normal_602803561da96.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377112/normal_6000a05b600a2.pdfIn PDF document text
    • http://zuzorovix.scienceontheweb.net/innovative_technology_turntable_problems.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365634/normal_5fc94f562adde.pdfIn PDF document text
    • http://medazuxa.mywebcommunity.org/wawozisulorifuxuzu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369316/normal_5ffe250c45d7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470218/normal_60224057c1d68.pdfIn PDF document text
    • http://gejudoxe.mypressonline.com/71459054190.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370791/normal_6001778b3717f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kewevagisugimuw.onlinewebshop.net/syntax_tree_diagram_exercises.pdfIn PDF document text
    • http://sanugifop.atwebpages.com/what_is_the_theme_or_message_of_the_gettysburg_address.pdfIn PDF document text
    • http://dogiwexor.myartsonline.com/50156778739.pdfIn PDF document text
    • http://jabodegodonirad.atwebpages.com/quais_so_os_tipos_de_artes_plsticas.pdfIn PDF document text
    • http://pojozija.onlinewebshop.net/58615914869.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001129a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1129A 5572 bytes
SHA-256: c46cfd3b323edea69e163c195daf61b9946ad9ad19c4220ea3cd1053f4f4d3e0
font_01_sfnt_off0001259e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1259E 11536 bytes
SHA-256: 382849333a26026f93a1370375393297591b62bbe85e8dd0742847344c468276
font_02_sfnt_off00014bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14BFC 16096 bytes
SHA-256: 3a87a2a80cb0740ff7ad33dbd9b35031d90241dfccc5ab96a3d2c3133af9c3ca

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