Malicious PDF — malware analysis report

Static analysis result for SHA-256 46602478ee2ea9ed…

MALICIOUS

PDF

74.2 KB Created: 2021-01-25 17:58:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 752f11bcb73b92f5d0381793b4676233 SHA-1: c600dab8ce4ee21078f492ee7d60457360194c44 SHA-256: 46602478ee2ea9eded8bc05239059ffedfdee35b17f06de42677a3e987c02146
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://maypoin.ru/wb?keyword=anonymous%20face%20mask%202%20sides, is likely used to redirect the user to a phishing or malware distribution site. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit vulnerabilities or trick the user into visiting the malicious URL, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wb?keyword=anonymous%20face%20mask%202%20sides PDF link annotation
    • https://cdn.sqhk.co/vagofedewat/hjbihgf/jatugemiwijepewalef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369516/normal_600cedf2b4dd7.pdfIn PDF document text
    • https://cdn.sqhk.co/wevujawej/jifibjh/jimoxafuz.pdfIn PDF document text
    • https://cdn.sqhk.co/feripamapuv/fhajZ09/satuzimopozak.pdfIn PDF document text
    • https://cdn.sqhk.co/xemugugafot/OkhfVjd/sekamuxewokitujen.pdfIn PDF document text
    • http://winoraama.space/airteltigo_international_callstv2wn.pdfIn PDF document text
    • http://discount50.pro/728575249217q5k2.pdfIn PDF document text
    • https://cdn.sqhk.co/mexovaru/iaGjhhg/fisuzefolabakosoti.pdfIn PDF document text
    • https://cdn.sqhk.co/letonolomo/5civRhh/newuwutisep.pdfIn PDF document text
    • https://cdn.sqhk.co/pupevadojas/jjfhgja/35786735855.pdfIn PDF document text
    • http://wejnpowk.space/moxamurqiow0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468255/normal_5fccb92f66b0a.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/bagisi/xojazebezuru.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/fireboy_and_watergirl_5.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/beehive_english_book_class_9.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/razevatefoxuvawixovitu.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/betujemuvabonesadebofexe.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/degelirapexedetibozipe.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/mesazanufezizizobobibej.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_off0000e569.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE569 5324 bytes
SHA-256: 884fbef7feff89952a95205fd1715a5cd8d8cf6a86528d83b11b39f9468f9ad7
font_01_sfnt_off0000f789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF789 10616 bytes
SHA-256: c21f5329b179b967f1b54c34a85a1a014fa4c0321975a1fbc59074d113686f8d

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