General
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Target
Client-built2.exe
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Size
3.1MB
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MD5
600063adc2e3df654e26b40d7fcd5252
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SHA1
03abd84e486da6ecdcc9f1acd5f89f0c5026daab
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SHA256
98b29ab07038ed53a9842ae6d9cf0991f0ce4ac54036ce5b703ef441be70b797
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SHA512
f4075584ec0a4ba56d4292b3f7d80ed6f4fc02c143a7e521e0c1838e1115870ca1e5f1ec2f6948d18c914da0ea5ed9dcac765382943a74683eed2deed57365ac
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SSDEEP
49152:bv3lL26AaNeWgPhlmVqvMQ7XSKTlRJ6QbR3LoGdydyTHHB72eh2NT:bv1L26AaNeWgPhlmVqkQ7XSKTlRJ6qA
Malware Config
Extracted
quasar
1.4.1
Office04
10.127.0.200:4782
fffe048b-d25a-4851-bd46-4583f63bcae9
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encryption_key
433895AE7B4C5D8EF94D36D167293A1C1914DBFB
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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 Client-built2.exe
Files
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Client-built2.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