Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b42d5a15c4a8b30…

MALICIOUS

PDF

67.5 KB Created: 2021-03-12 09:06:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 18f22691d612a72ad348bf8aad63b54e SHA-1: 46eabe31f843556278fcafa0a170277852dc1a14 SHA-256: 9b42d5a15c4a8b30b05645ffddc72528f9cfddaf41223ed277b4079a563ddfa9
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 0.9998

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://dugedepap.ru/wix?keyword=thompson+falls+montana+library PDF link annotation
    • https://favipipuwebex.weebly.com/uploads/1/3/5/3/135397367/tifisuxutidixu_ruzisuguvapow.pdfIn PDF document text
    • https://cdn.sqhk.co/vemoderama/i2UHNsp/cadena_de_suministros_definicion.pdfIn PDF document text
    • https://xapawijumoj.weebly.com/uploads/1/3/1/3/131379373/gavupek.pdfIn PDF document text
    • http://gemofesane.medianewsonline.com/28_sda_fundamental_beliefs.pdfIn PDF document text
    • https://cdn.sqhk.co/takodabu/jdigAjb/redamenunerurozo.pdfIn PDF document text
    • https://cdn.sqhk.co/wufevinek/njihbPr/8956422649.pdfIn PDF document text
    • https://cdn.sqhk.co/xiteduva/jbxibhh/50962159235.pdfIn PDF document text
    • https://cdn.sqhk.co/patagarinixa/hfAKihq/dizijugapalig.pdfIn PDF document text
    • http://sizuxofutitarax.mypressonline.com/52455191930.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuwutexo.onlinewebshop.net/kowitomizorufojotuv.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/65489739059.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/36390690521.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/jitejobugubepo.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/entrepreneurship_defined.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/60493022546.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/antigua_cricket_ground_weather_report.pdfIn PDF document text
    • http://gapoxuvopa.onlinewebshop.net/nodirujinedijijan.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/how_to_install_network_printer_in_windows_7_step_by_step.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_off0000cc4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC4C 5332 bytes
SHA-256: cb9d0bd1647378ef810bbe2c91064af1d817ed84c7f2c13a943e6891ff895f4e
font_01_sfnt_off0000de41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE41 10184 bytes
SHA-256: 916cdbc93c3c32760afac6008f18985e045b7ca2a6d080c6297c8a383e9409ba