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General
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Target
8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e
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Size
342KB
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Sample
230723-jjeqsseb61
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MD5
28cfa829e7c09385aac5eae9439fb961
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SHA1
71b0a00a387f50ab4727b6eb52ef52945837ebb0
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SHA256
8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e
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SHA512
51201855b63f1130bb08ac48af17a1c0281e86c707a78b14a30087404acb863a872f985d925a80bcec965316c18e493ad01306d5840428ff0b554fe9a8b836d8
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SSDEEP
3072:iobbyor9dM9xCHGHQqEINH+pXzLjXR9DapqgPqtC26QjcwP0gjOkAZiLMRr+Zqql:vr9dMO/qEho/Pq/6QtI7szwup1jL0u
Behavioral task
behavioral1
Sample
8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe
Resource
win10v2004-20230703-en
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
chaos
Targets
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Target
8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e
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Size
342KB
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MD5
28cfa829e7c09385aac5eae9439fb961
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SHA1
71b0a00a387f50ab4727b6eb52ef52945837ebb0
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SHA256
8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e
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SHA512
51201855b63f1130bb08ac48af17a1c0281e86c707a78b14a30087404acb863a872f985d925a80bcec965316c18e493ad01306d5840428ff0b554fe9a8b836d8
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SSDEEP
3072:iobbyor9dM9xCHGHQqEINH+pXzLjXR9DapqgPqtC26QjcwP0gjOkAZiLMRr+Zqql:vr9dMO/qEho/Pq/6QtI7szwup1jL0u
Score10/10-
Chaos Ransomware
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Modifies boot configuration data using bcdedit
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Drops desktop.ini file(s)
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Sets desktop wallpaper using registry
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