General
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Target
Client-built.exe
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Size
3.1MB
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MD5
a3fa91fc7fb1db57f47616e37ee1c039
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SHA1
1d538fb6ecbdf7f024dd43b78abee16a3b2a5381
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SHA256
c0165e1a67c435709cff8cb27e01cadf6e9047f92609897dd8631bd73652c6cb
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SHA512
879e0902fd28cde6ab266f8f05fe72629cee2f196f48d106f5ebd6f8e4d98c026cfe4ba62f84a4f2fae5b10af65f3040cdc5ede2273e7b3dedffa455eb473021
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SSDEEP
49152:yvnI22SsaNYfdPBldt698dBcjH0ARJ6gbR3LoGdBTHHB72eh2NT:yvI22SsaNYfdPBldt6+dBcjH0ARJ66
Malware Config
Extracted
quasar
1.4.1
Office04
178.249.214.67:4782
5322b71c-e6d1-4271-a40e-ed1736164335
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encryption_key
9C4EA8E0DF89BE6122CBCA3F1DCCDAE968F75366
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install_name
Client.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
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Client-built.exe
Files
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Client-built.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