Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240729-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
6163ff7c7b7268a913236d8dd1f54ae0
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SHA1
ea98f306cdba4530432eb95066a5a32dbdea8cd7
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SHA256
84d0605cf5fa762749ee8066956bf7f56eccbc37593fc80810f6cef082043ab0
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SHA512
f48e018bafac40e469ed58e9667e5f59face989fc4503e5e6d4177a53438c9a2c6778279f720e2b40a3653114d648d39bceb3a4b50923e76c238248d403cdb42
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SSDEEP
49152:Uh/CvvE+8hJIKxIVt7PqFYxEsxuGI2jZTHHB72eh2NTU:UhqE+8hJIKxIVt79Esx/X
Malware Config
Extracted
quasar
1.4.1
SKIDS
147.185.221.22:6712
545189bc-dfba-489d-8e50-a0af024c11bf
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encryption_key
9E968F05BD874BA1BE086FD1774A027473823F49
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install_name
Windows Host Process.exe
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log_directory
Windows-Logs
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reconnect_delay
3000
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startup_key
Windows Host Process
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subdirectory
Windows
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 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