Malicious PDF — malware analysis report

Static analysis result for SHA-256 48ae8ec0f6f15ea6…

MALICIOUS

PDF

93.1 KB Created: 2021-03-06 07:57:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 65bd9f0ba642a752ab43f6fd53b0a5e6 SHA-1: b937b9dbab6864115adb070dc088e025c6a62126 SHA-256: 48ae8ec0f6f15ea6bf58116bbc1efa93c2c1dd16a0c9399eb4144f275e6154ac
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a suspicious domain, masquerading as a search result. ML and ClamAV heuristics strongly indicate malicious intent, specifically phishing. While no scripts were directly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/strik?utm_term=legend+of+zelda+manga+wiki PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365620/normal_5fd32a002c7b5.pdfIn PDF document text
    • http://reduslim-ordina.site/464098521842au8u.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367622/normal_6018d9084c8ca.pdfIn PDF document text
    • https://cdn.sqhk.co/pixorikibam/ajW8hOm/23228883573.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369651/normal_6042239ea0969.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386084/normal_5fcc0eb076d01.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476285/normal_60244a7b653a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386834/normal_603470291c663.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414153/normal_5fcf3cad0e67b.pdfIn PDF document text
    • https://cdn.sqhk.co/fegujajox/big8WO6/phoenix_zoo_discounts_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/pesuxitum/opRjctF/26662406729.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/gghbjh6/dewote.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490252/normal_5fef5827ce631.pdfIn PDF document text
    • http://lnstagramverifiedbadge-media.com/rulezokofugodunimicnsb.pdfIn PDF document text
    • https://cdn.sqhk.co/lituxopevuk/G9idTkf/bmx_bike_racing_games_free_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409799/normal_602b505c9ab40.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369786/normal_5fe7bbe68972f.pdfIn PDF document text
    • https://cdn.sqhk.co/livujiguf/gjjbLoG/open_beta_cold_war_xbox_not_working.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/zabejuvijolu/worthy_is_the_lamb_sinach_song.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/dododemakokavinigiz.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_off000130f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130F3 5100 bytes
SHA-256: 56060e5696c68e3b06a21af4a7f3851c9456880f2b7369c3e53c8bf7aefe2fe9
font_01_sfnt_off00014268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14268 10844 bytes
SHA-256: 42cd01b26dc1bfd0c8008d574eebd2aace9cbd39193c279d6503938860e7a7f3