General
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Target
2b472ca3d4c6f506b9255b6785ac5406ba8c08033092d4b2c7dc1c94fc73e3ca
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Size
812KB
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Sample
211125-zkpv6abhe7
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MD5
b1c68573843e3cac6e32f71da6244fc8
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SHA1
3d8ad0625fe04b7e459e17da7523124521332377
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SHA256
2b472ca3d4c6f506b9255b6785ac5406ba8c08033092d4b2c7dc1c94fc73e3ca
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SHA512
f5a97fd77ec862dd2543696425d20f344293e5ddd01cd814eb4f650c7b883d29a9436f3c9234cbece10c7ae5d204becde4a139e25873a0be9fd07fad13314205
Static task
static1
Behavioral task
behavioral1
Sample
2b472ca3d4c6f506b9255b6785ac5406ba8c08033092d4b2c7dc1c94fc73e3ca.exe
Resource
win10-en-20211104
Malware Config
Extracted
djvu
http://tzgl.org/lancer/get.php
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extension
.robm
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offline_id
Z5GGASEfY71jtxU3i3E8kzvrTJmY9oiZkjcSm0t1
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payload_url
http://kotob.top/dl/build2.exe
http://tzgl.org/files/1/build3.exe
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ransomnote
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Extracted
vidar
48.7
517
https://mstdn.social/@anapa
https://mastodon.social/@mniami
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profile_id
517
Targets
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Target
2b472ca3d4c6f506b9255b6785ac5406ba8c08033092d4b2c7dc1c94fc73e3ca
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Size
812KB
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MD5
b1c68573843e3cac6e32f71da6244fc8
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SHA1
3d8ad0625fe04b7e459e17da7523124521332377
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SHA256
2b472ca3d4c6f506b9255b6785ac5406ba8c08033092d4b2c7dc1c94fc73e3ca
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SHA512
f5a97fd77ec862dd2543696425d20f344293e5ddd01cd814eb4f650c7b883d29a9436f3c9234cbece10c7ae5d204becde4a139e25873a0be9fd07fad13314205
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Detected Djvu ransomware
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Vidar Stealer
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Downloads MZ/PE file
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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