General
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Target
RustRCSController.exe
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Size
3.1MB
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MD5
be28df7fa7d56618aa9d68f128f1ad6e
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SHA1
f7057f68a15d4bb16a4879ae5e86add4de34d130
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SHA256
5ed9d60854afed41799f5c6afe30d99e8b20bd14f22f189c5fea0f5f6d7c4835
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SHA512
1367c799c758c62b65dc75fc85fcdf1838aa9b52a480dc60bd27fdad468ccd2890e60e4f7966a8f263e6173fe9e3493ec01387525b1acfc0730ce1cb84e156d6
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SSDEEP
49152:uvzlL26AaNeWgPhlmVqvMQ7XSKEVRJ66bR3LoGdzTHHB72eh2NT:uvpL26AaNeWgPhlmVqkQ7XSKEVRJ6U
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.254.105:4782
5fa0d5e3-3b6f-43a3-aa67-c57d1de249e7
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encryption_key
148D381E3CBDDC36FD069774D97038E889166888
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install_name
RustRCSController.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource RustRCSController.exe
Files
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RustRCSController.exe.exe windows:4 windows x86 arch:x86
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: 3KB - Virtual size: 2KB
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