Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240611-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
2a5d0a7b5310648731b92060b723cfdf
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SHA1
c020d8e9536c351d85e9b76d5232e5030c0fff6d
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SHA256
c66affad00d79ff0a9189ea5c9f389b064b17c1afccca2a6c7bd2bed30801d50
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SHA512
39cc62dd3bbc8ee15eb37107de972bad1bbc1dde953dcb734cf391020691e6121fc38b64207e18da9a6a01fed8ea0860b67273cb6f3f328d89396c4a192c3efb
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SSDEEP
49152:GvOI22SsaNYfdPBldt698dBcjHDxDE/gTk/JxAoGdcTHHB72eh2NT:Gvj22SsaNYfdPBldt6+dBcjHDx0K
Malware Config
Extracted
quasar
1.4.1
Solara
192.168.0.23:4782
1db1cfc2-0b96-4b9e-afd9-8208e6abd265
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encryption_key
41AD0502F025DD3F47720DC4BDEED540F3EAFD12
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install_name
securekerneI.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Update
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subdirectory
SubDir
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-built.exe
Files
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Client-built.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