Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20231129-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
589c24761ab9fa34227a089bb143f0d9
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SHA1
04494373772d7317ec0e3478d8a46d02295674c1
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SHA256
32482459ae887086ef09bc2d59ab47dab620cb4fc3912c8e9433c1ff0b803600
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SHA512
b87e1c2f0aad4baadcc8028a246607cc0bf2504548367a47c080ea59f361928cf5e887319c21191fdec3720681bf06cb2e8926ebeb9afb5d733b9d0daa1c1bcf
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SSDEEP
49152:PvOI22SsaNYfdPBldt698dBcjHBCi1JmLoGdNtTHHB72eh2NT:Pvj22SsaNYfdPBldt6+dBcjHBCR
Malware Config
Extracted
quasar
1.4.1
Solara
192.168.0.23:4782
39c5c45c-62a0-4623-a904-5cbad2aa6b55
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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