Behavioral task
behavioral1
Sample
ClientX.exe
Resource
win7-20240903-en
General
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Target
ClientX.exe
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Size
3.4MB
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MD5
d0203db3da462cf098ab8dd966c2d0a9
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SHA1
d99936af6252051ca19f4e3c7d22d345304aa7db
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SHA256
64698e9f6067743efd975ce0d47b63b78dfea095464eb0ebd3b6c70d6634decf
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SHA512
ceb3aa0a2001579592b6ad5a8f441f001dae51eb9409182bc8daa10912d9ae0843c1cd15e80c757626ab9ed4bcdcf1ab92a958b1ea2fb43b32f2555ad27b1070
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SSDEEP
49152:SvrI22SsaNYfdPBldt698dBcjHBDaEEmkak/8FroGdmTHHB72eh2NT:SvU22SsaNYfdPBldt6+dBcjHBDakl
Malware Config
Extracted
quasar
1.4.1
ClientX
o0p2e195m0-57292.portmap.host:57292
aed26719-3e68-475e-a947-4e692516badc
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encryption_key
20F3A07EDAB2EA12EDA843B6ACF5435C19DB5D85
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install_name
X.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
ClientX
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subdirectory
Client
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 ClientX.exe
Files
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ClientX.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: 267KB - Virtual size: 266KB
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