Malicious PDF — malware analysis report

Static analysis result for SHA-256 e57601665f47e1f1…

MALICIOUS

PDF

66.2 KB Created: 2021-02-13 20:55:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 235df8e563c4b6d3b75abd20a3357ee8 SHA-1: 3cb7fc35e67d5879f66e5bde2602723a3ff5e1d6 SHA-256: e57601665f47e1f13d9680303720cdc81e95eaad60b4a8f52be95f1df6f499d6
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. ClamAV and ML classifiers strongly indicate malicious content, and the presence of an external URI points to a phishing or credential harvesting attempt.

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://seumenha.ru/wix?keyword=im+essentials+questions+pdf PDF link annotation
    • http://rankingcoach-apps.com/79571103280tnmoo.pdfIn PDF document text
    • http://demask.space/xonamufipenagipuzudonugin19n9.pdfIn PDF document text
    • http://particulieres-societegenerale.best/26522167792ea35h.pdfIn PDF document text
    • http://mutinujevax.22web.org/ballay_ballay_audio_song_free.pdfIn PDF document text
    • http://vir-tus.com/70336696377skz40.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://raseloxezonavo.epizy.com/51621674237.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/best_excel_checklist_format.pdfIn PDF document text
    • http://lafeseg.rf.gd/libewujokobuxurirumisofik.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/mubolasufuromapolebi.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/itm_agent_builder_user_guide.pdfIn PDF document text
    • http://suzufesa.epizy.com/57860790841.pdfIn PDF document text
    • http://porapasegunan.epizy.com/13849102006.pdfIn PDF document text
    • http://tirosonitagaxe.rf.gd/xeganiruzebuwukimaripozij.pdfIn PDF document text
    • http://luwulifinuneti.epizy.com/mailchimp_edit_template_content.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/remote_jamming_device.pdfIn PDF document text
    • http://fesemuk.rf.gd/broadsheet_melbourne_this_weekend.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_off0000c4ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4EF 5156 bytes
SHA-256: 1735eb37e82e25c10d1f690289aae0fdc72ed7a0943fc8c3a03d03d9e1455397
font_01_sfnt_off0000d669.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD669 10780 bytes
SHA-256: c5aa36368f3a2c6571ebee4bce9e4843d1919cc51c8a8b0d41992b550c4e43d3

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