General
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Target
client.exe
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Size
3.1MB
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MD5
4dfff8420e0d2f3a0e30a3ae8e005830
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SHA1
379546834fa347bdcf6a4aa1a9d956b540d33b55
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SHA256
7869d203ee2ffc4d75d4d542cc2e3a970ca249d675e8bc7bd4f9cc85c80cab69
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SHA512
6f4de859019a9ed236f6ddcbb03737c9e643368ae74fea3b36f7254a1b691448fb5f5befe4997554ed96f099309908f6b0a42d46161d3727d07620b1ecca94cb
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SSDEEP
49152:2vBt62XlaSFNWPjljiFa2RoUYIlQcMbKLoGdFewTHHB72eh2NT:2vr62XlaSFNWPjljiFXRoUYIlQcM2
Malware Config
Extracted
quasar
1.4.1
watchdog
142.115.43.39:8080
1c1f3ace-a14c-4361-99eb-65aedb6d50fd
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encryption_key
3FAEE4D5FC9BC245D4CA5F4165EAFD34E8D5FE16
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install_name
watchdog.exe
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log_directory
logs
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reconnect_delay
3000
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startup_key
watchdog
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subdirectory
drivers
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource client.exe
Files
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client.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