Malicious PDF — malware analysis report

Static analysis result for SHA-256 5413bf19a9f5d00e…

MALICIOUS

PDF

65.0 KB Created: 2020-12-14 19:24:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: e08ba7bd5dfed2d7eee55aeef3f611d6 SHA-1: d94286e0d42bd66cf3f00b754c4a4df9195ff0a7 SHA-256: 5413bf19a9f5d00e4d2be6e4a6907feb46f4aa0f8dbbd4febf29cbdc2005c499
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffnew.ru/strik?utm_term=maricopa+workforce+connection+gilbert PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4dcefa04221c7116c0cb/1606372815652/wemeluxonepupawojilawu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2a394239b0722913c6c92/t/5fc9970ce262c015945b9d4d/1607046925278/disney_princess_dress_up_games_online_mafa.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc18b2c68612547ed62b026/t/5fc2d33418e72e5fdb354db2/1606603573152/jofided.pdfIn PDF document text
    • https://s3.amazonaws.com/rekibedafowow/garth_brooks_as_chris_gaines_on_snl.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e08512facd59ceacd9cd/t/5fc1c009173fb5383be3d603/1606533130149/isotonic_contraction_definition_heart.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/academic_counselor_information_system_in_software_engineering.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/cheater_synonym_formal.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10b71bdb33045eec31c8e/t/5fc1843b08845d0924c40436/1606517824077/bamimuwazebewezuxat.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/36684018060.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf59153570fb44d1f9dadd/1606375702032/81521970312.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/amazon_prime_lg_tv.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf00c5147b14804f7dc15/1606283277754/sapabutowef.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64c582e537a05ef2dcca0/t/5fc8a9c48eecd53e39f00ac4/1606986182834/nemubuwawazimosiwujig.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_off0000be73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE73 5308 bytes
SHA-256: 784b32fb2e6727e74c0b72f2231f575c0b5d5a486c78aa97432b36e19a8a2d08
font_01_sfnt_off0000d0ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0BA 10824 bytes
SHA-256: abc70177ae2dadc42391938b6345ec04e16cc0eacbb937c85e8a00da9abb9846

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