General
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Target
082c54c0f2051462c83519bfa1f5d9cd616c2a46c22826fd38b81f5643573f79
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Size
799KB
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Sample
230206-3n5bssgd68
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MD5
311b74a3e8192002c3ab08ebcdd0df74
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SHA1
c5b7ab715ddf2c652f4e2c1bc955c82eca0b9ad6
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SHA256
082c54c0f2051462c83519bfa1f5d9cd616c2a46c22826fd38b81f5643573f79
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SHA512
6ecbb25b249b0e8850fb83db34f72e3a064d93c50b0541c3b72cb1259be34c424e6f8e392b410760492c2e36cf2e98dd2df478f0007c789ee612c590bd1aee2c
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SSDEEP
12288:Cq2Ycr61TwxSGpU+j124W0f17TXem475BVHO0klo79/LVE76bBIxWEV0ZOljO:CxrSTwxSG2+j1C0dFM3kOvEjxRKAljO
Static task
static1
Behavioral task
behavioral1
Sample
082c54c0f2051462c83519bfa1f5d9cd616c2a46c22826fd38b81f5643573f79.exe
Resource
win10-20220901-en
Malware Config
Extracted
djvu
http://bihsy.com/test1/get.php
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extension
.erqw
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offline_id
xVB7l5LcUtDGyghMgGsTvebrKc0RGgDXlN1BoKt1
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payload_url
http://uaery.top/dl/build2.exe
http://bihsy.com/files/1/build3.exe
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ransomnote
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Extracted
vidar
2.4
19
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profile_id
19
Targets
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Target
082c54c0f2051462c83519bfa1f5d9cd616c2a46c22826fd38b81f5643573f79
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Size
799KB
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MD5
311b74a3e8192002c3ab08ebcdd0df74
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SHA1
c5b7ab715ddf2c652f4e2c1bc955c82eca0b9ad6
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SHA256
082c54c0f2051462c83519bfa1f5d9cd616c2a46c22826fd38b81f5643573f79
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SHA512
6ecbb25b249b0e8850fb83db34f72e3a064d93c50b0541c3b72cb1259be34c424e6f8e392b410760492c2e36cf2e98dd2df478f0007c789ee612c590bd1aee2c
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SSDEEP
12288:Cq2Ycr61TwxSGpU+j124W0f17TXem475BVHO0klo79/LVE76bBIxWEV0ZOljO:CxrSTwxSG2+j1C0dFM3kOvEjxRKAljO
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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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