General
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Target
OperaSetup.exe
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Size
3.3MB
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MD5
ca776e43c58f4943c9477eff364fc370
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SHA1
b3c37aefbedec4e5e7649dd2d4bc236cd74e7142
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SHA256
913df0e18d030275ba5e5cfe7853fb69c044aef1d4cc8365be875780ef0c2386
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SHA512
9995af498fe59325669d7e4ba5a01efde2179cf2ab47ad97bd973c0853eef142714f9f0983ff5584886f56790881cb5bb7be63d6c23057ec3a57c7086f474edb
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SSDEEP
49152:rvIt62XlaSFNWPjljiFa2RoUYIBF+d7BekXo6dLTHHB72eh2NT:rvE62XlaSFNWPjljiFXRoUYIB4dB
Malware Config
Extracted
quasar
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reconnect_delay
3000
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 OperaSetup.exe
Files
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OperaSetup.exe.exe windows x86
Password: opera
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: 3.2MB - Virtual size: 3.2MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.sdata Size: 512B - Virtual size: 150B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 31KB - Virtual size: 31KB
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