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General
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Target
94ba7f1f2e36466f459f6634a11f2c7e1fb06c08c0017b498c663f0c0a6b2037
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Size
718KB
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Sample
220920-rjb9nsdce5
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MD5
91782e054035e7d713498eb439be8f8c
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SHA1
2569123bd92b61d3ff85d105e0fd72a3d745b52f
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SHA256
94ba7f1f2e36466f459f6634a11f2c7e1fb06c08c0017b498c663f0c0a6b2037
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SHA512
493516938a8a8f6e45ab7d639b22b5dbc8d476437013bacaaf02cf71d1b0d46983e7660da6894b1f771e4ba4ee45911e10cd48a7b9929df340a1e10a9228aec4
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SSDEEP
12288:X3crEJjddKupYOxZGDh0zKneHwO+Udlx0sb4LVUnEPJ7hwiVKeaFc:X/VpYOyDQKRA0sEmc7BYe
Static task
static1
Behavioral task
behavioral1
Sample
94ba7f1f2e36466f459f6634a11f2c7e1fb06c08c0017b498c663f0c0a6b2037.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
94ba7f1f2e36466f459f6634a11f2c7e1fb06c08c0017b498c663f0c0a6b2037.exe
Resource
win10-20220812-en
Malware Config
Extracted
djvu
http://acacaca.org/test1/get.php
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extension
.mmpu
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offline_id
yd6oYv6aBN90yFzTWdZ34sXSXtXiauzOLXZyWht1
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payload_url
http://rgyui.top/dl/build2.exe
http://acacaca.org/files/1/build3.exe
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ransomnote
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Targets
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Target
94ba7f1f2e36466f459f6634a11f2c7e1fb06c08c0017b498c663f0c0a6b2037
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Size
718KB
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MD5
91782e054035e7d713498eb439be8f8c
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SHA1
2569123bd92b61d3ff85d105e0fd72a3d745b52f
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SHA256
94ba7f1f2e36466f459f6634a11f2c7e1fb06c08c0017b498c663f0c0a6b2037
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SHA512
493516938a8a8f6e45ab7d639b22b5dbc8d476437013bacaaf02cf71d1b0d46983e7660da6894b1f771e4ba4ee45911e10cd48a7b9929df340a1e10a9228aec4
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SSDEEP
12288:X3crEJjddKupYOxZGDh0zKneHwO+Udlx0sb4LVUnEPJ7hwiVKeaFc:X/VpYOyDQKRA0sEmc7BYe
Score10/10-
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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