General
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Target
OperaSetup.exe
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Size
6.1MB
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MD5
00a4ee18252cfabbf6735ce1f49e77c7
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SHA1
a8aafe58a2a6cf454ce0582354b7212a87703b96
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SHA256
eb8a525a1775421921d9adc2da4d5f45d7e15c0bad290df07b882925f999edb1
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SHA512
cb0458b101099f3c4bc810297b001887b3619db0354be5e9e93bbdb2e3a0dad31954257e0802082e1e25dbe7609d4d9e02e6f2b99b16ec9b01572b09ca4f1d13
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SSDEEP
98304:hGh5ziNlRUaub+MPDrc/c+NmXnKyFrsqCZHj92AYawl1WPOl6NVLkJ0xTX+H:h3NlqaubXgUCqC1BjxaH
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: ms
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: 6.0MB - Virtual size: 6.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.sdata Size: 512B - Virtual size: 177B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 30KB - Virtual size: 30KB
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