General
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Target
4d4fe27f46f12dd2baa917e11272423ba279e996ad44803389cdae8b70c5e9fc
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Size
750KB
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Sample
230328-bgk6ssaa4y
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MD5
78ffa4992d526ce6024dc39a10359625
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SHA1
df3ab3e7e04a4a7af313be76d310d3cc7c81f1fd
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SHA256
4d4fe27f46f12dd2baa917e11272423ba279e996ad44803389cdae8b70c5e9fc
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SHA512
66f01c35824d109c66c503c3363838fc466ddb3be6940251cec04f4c806143993dfe2f1722eecaf8c7ec2593954248fca6ba5752e8e56d6ca23092bc6622314a
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SSDEEP
12288:ryld52WlGUJblU8MkbcUKWehdY1KFiLOdbQ/2a1dBoTMuZhkt2Wr3QW0ysHI:ryp3vblmk4Nhy1hLOdbI2IoTFfWrgEsH
Static task
static1
Behavioral task
behavioral1
Sample
4d4fe27f46f12dd2baa917e11272423ba279e996ad44803389cdae8b70c5e9fc.exe
Resource
win10-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.jyos
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offline_id
MEMHlobHgXqvmTWaMsLcwGZhDOd00bblO1yevst1
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payload_url
http://uaery.top/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
3.1
00d92484c9b27bc8482a2cc94cacc508
https://steamcommunity.com/profiles/76561199472266392
https://t.me/tabootalks
http://135.181.26.183:80
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profile_id_v2
00d92484c9b27bc8482a2cc94cacc508
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user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79
Targets
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Target
4d4fe27f46f12dd2baa917e11272423ba279e996ad44803389cdae8b70c5e9fc
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Size
750KB
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MD5
78ffa4992d526ce6024dc39a10359625
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SHA1
df3ab3e7e04a4a7af313be76d310d3cc7c81f1fd
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SHA256
4d4fe27f46f12dd2baa917e11272423ba279e996ad44803389cdae8b70c5e9fc
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SHA512
66f01c35824d109c66c503c3363838fc466ddb3be6940251cec04f4c806143993dfe2f1722eecaf8c7ec2593954248fca6ba5752e8e56d6ca23092bc6622314a
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SSDEEP
12288:ryld52WlGUJblU8MkbcUKWehdY1KFiLOdbQ/2a1dBoTMuZhkt2Wr3QW0ysHI:ryp3vblmk4Nhy1hLOdbI2IoTFfWrgEsH
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Detected Djvu ransomware
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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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