General
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Target
b5160de7-79cd-73a4-898c-5075da7b7de1.zip
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Size
3.1MB
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MD5
c830d1e86f77f924a31515309841d870
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SHA1
8482570c76412e3ada624297c4fd323e1f01ecd2
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SHA256
8fcba0e72c735518fa89e18a8651684c8195c4ea2b9fa4f52d09e81e6c67611a
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SHA512
63828299e1b07d055ed63017d690c2da3d3f30022f5a2599df485d4d796fa6c6f9c6ac1153d499a885ce611f503f574b5861b0236966c3d7f9a3eac75c6a57dd
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SSDEEP
49152:SvUt62XlaSFNWPjljiFa2RoUYIOwRJ6kbR3LoGdbTHHB72eh2NTT:SvI62XlaSFNWPjljiFXRoUYIOwRJ6uM
Malware Config
Extracted
quasar
1.4.1
Office04
10.2.0.2:4782
c5c287ad-0a57-48e5-99fb-50e919752c29
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encryption_key
6C081B1F8057B935D39BEA607376E6B32A915EB8
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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 2 IoCs
resource yara_rule sample family_quasar static1/unpack001/Quasar.exe family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Quasar.exe
Files
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b5160de7-79cd-73a4-898c-5075da7b7de1.zip.zip
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Quasar.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: 7KB - Virtual size: 6KB
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