General
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Target
Proton.exe
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Size
3.2MB
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MD5
3dd1db5a4c2ab4202e32192fde58bf71
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SHA1
4f39e84991e0a8c1553aa54ea2aaa4d1100b4442
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SHA256
cbfc67591e1ca528c94d3d7c6caf2a7269930f7abc70d693e62f7db1ba342941
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SHA512
4fdadab6d43b1cdc4e0946183cb612ce12cc555671c3f6b6c8d6aeb7235a379918aa18d3e52b374451eb24384b2441d33116c0df9bcbd13b7a3d133f0dc95f79
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SSDEEP
49152:ivLI22SsaNYfdPBldt698dBcjH+y5Q1v+LokdlQTHHB72eh2NT:iv022SsaNYfdPBldt6+dBcjH+y5x
Malware Config
Extracted
quasar
1.4.1
Proton
212.154.101.132:3000
1b3adac2-334a-4914-b42a-429f32ec011f
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encryption_key
8738101E98DC472C5F4C9FE5E109DEF1CA883172
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install_name
ProtonStubBuilder.exe
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log_directory
Logs
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reconnect_delay
2
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startup_key
Ethone Updater
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subdirectory
Proton
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Proton.exe
Files
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Proton.exe.exe windows x86
Password: tested
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 114KB - Virtual size: 113KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ