Behavioral task
behavioral1
Sample
Client-built3.exe
Resource
win7-20230220-en
General
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Target
Client-built3.exe
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Size
349KB
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MD5
e39a1d9d6534c53fc6afa0f7eef2cad6
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SHA1
709691165d9e58bb293ff41227e99de01337a66e
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SHA256
0cd2d3186a549f06203a14c62c7b46a9465bfdac39b2d57def8dc2b719d21fdb
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SHA512
dbdda6ba628d05d33a1710c5b03afd08148b0ae4353954d5a877a6c67c2656637ac09899b11fe6ecbc5b21fe99f55fa0848d2904ddd2b9edeb606d33ec0046c1
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SSDEEP
6144:RKMJx4pweP7kJS3iaxQmBF6ii9iiiMiiiiiiiiRiiisiJ68YDfCbLa2XBgJbrbTs:RKoSCmT6ii9iiiMiiiiiiiiRiiihJ68L
Malware Config
Extracted
quasar
1.3.0.0
Office04
192.168.1.1:4782
192.168.1.212:4782
QSR_MUTEX_iVucKYENzYZDb1vZMc
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encryption_key
lUiTMvY0HtwcUzBi9VCt
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install_name
Updater.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Java Runtime Updater
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subdirectory
Java Runtime
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar
Files
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Client-built3.exe.exe windows 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: 346KB - Virtual size: 345KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - Virtual size: 1KB
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