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
86bd4496eab8ed85c7806bbe8b4faeff
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SHA1
93908110af4954cda171542785bf17c0203077f5
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SHA256
a9704b9ec835390fe47e215aa4928bed85698818c5de90ad11e1bc61de12fff1
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SHA512
53d49ada84dc2c712805beb18e00b10eb1d730ca9d02dc559b8c0594452eb2ac64af719cb26ec9b8cc4486969078e4640138a5be295f7e968fef2db4c08b1214
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SSDEEP
49152:SvJI22SsaNYfdPBldt698dBcjH62RJ6GbR3LoGdOzGTHHB72eh2NT:Svq22SsaNYfdPBldt6+dBcjH62RJ6A
Malware Config
Extracted
quasar
1.4.1
victim
192.168.0.8:4782
b4f8207c-44c4-442b-9a76-0a5ef954b8b8
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encryption_key
2EF56B2D5415EB3BBA2A2D7B6B83FB157B370CDE
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install_name
cilent-bulit.exe
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log_directory
Logs
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reconnect_delay
100
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startup_key
solara
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subdirectory
cilent-bulit
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