General
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Target
4348ad4787cdca0e04c88e6daaa95488d824f13a50a1185e561c2d783f73d5d5
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Size
695KB
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Sample
230404-b9k2haeb2z
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MD5
4bfb09a06bfe346c8b8d9a0cdbcd1af2
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SHA1
1fc125c78f7159e1da96515d204024ded41d0dee
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SHA256
4348ad4787cdca0e04c88e6daaa95488d824f13a50a1185e561c2d783f73d5d5
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SHA512
c54e8c3f563f6953387874de618b60bd21f085275293feb83cd4f281d07b3b11734cb8818d0b353a9b8710464b9df1501627d7a6d6c2e64cf375e1409658fcc1
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SSDEEP
12288:RSJG27HOVvMXQKHbJB55A3SAUEL92uT9+e/Xco1rMzctFNyo:RSJjCVEXB7rOSTE52O+e/m0F
Static task
static1
Behavioral task
behavioral1
Sample
4348ad4787cdca0e04c88e6daaa95488d824f13a50a1185e561c2d783f73d5d5.exe
Resource
win10-20230220-en
Malware Config
Extracted
djvu
http://zexeq.com/raud/get.php
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extension
.niwm
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offline_id
FCP2fiITr4rryFhFBnA59GMgwES5CunmcbPc76t1
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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
3.2
5df88deb5dde677ba658b77ad5f60248
https://steamcommunity.com/profiles/76561199489580435
https://t.me/tabootalks
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profile_id_v2
5df88deb5dde677ba658b77ad5f60248
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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
4348ad4787cdca0e04c88e6daaa95488d824f13a50a1185e561c2d783f73d5d5
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Size
695KB
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MD5
4bfb09a06bfe346c8b8d9a0cdbcd1af2
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SHA1
1fc125c78f7159e1da96515d204024ded41d0dee
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SHA256
4348ad4787cdca0e04c88e6daaa95488d824f13a50a1185e561c2d783f73d5d5
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SHA512
c54e8c3f563f6953387874de618b60bd21f085275293feb83cd4f281d07b3b11734cb8818d0b353a9b8710464b9df1501627d7a6d6c2e64cf375e1409658fcc1
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SSDEEP
12288:RSJG27HOVvMXQKHbJB55A3SAUEL92uT9+e/Xco1rMzctFNyo:RSJjCVEXB7rOSTE52O+e/m0F
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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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