General
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Target
Solara.exe
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Size
3.1MB
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MD5
547f1ce058f078b8a71b2480908efc86
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SHA1
8672c0cb7fadabddac6b785dc6a3b6ca801e43f8
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SHA256
515cf47c5e3294404633bb98b2f50b615af7ab0cf2c3ff1f6675d5d59911e45d
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SHA512
22a47ed6393c3102c78ae259954c3fef3b2ea94ab721c3d2184f9775102d22f81d6893b677e1cd9b10d7e4533ce99a3fc9efd28f2e0c203c2aefa52574bd64c7
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SSDEEP
49152:DvnI22SsaNYfdPBldt698dBcjHV7xe1v1LoGlMTHHB72eh2NT:DvI22SsaNYfdPBldt6+dBcjHV7xS
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.178.104:4782
e891c020-455f-4321-953c-920a855946ba
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encryption_key
183636CA2E363ADC2283216B0F563CCDFFEDBD78
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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
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Solara.exe
Files
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Solara.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