Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240319-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
9a8853b2d14a1cc2779bca39bbec62b2
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SHA1
93fed5da8104e34f9c42a5e59227829a86d3795d
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SHA256
d72775e6603951c44c96ac31885bca2efb1358c86473a1f2e33c98a62a73a4ac
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SHA512
c249f9d236bd5bae249cce6be833d5f4ea725efb1c6f79afc30e28657472ce4e6e6ce281c1c14d31974f05e7a0f3555e513886df63b5c326ade7e8239d8de43e
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SSDEEP
49152:DvrI22SsaNYfdPBldt698dBcjHyjyPzoGroTHHB72eh2NT:DvU22SsaNYfdPBldt6+dBcjHyjyr
Malware Config
Extracted
quasar
1.4.1
Slave
xcoderreal-54839.portmap.host:54839
276d9dc6-b19c-4958-8ac3-89586bd3b515
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encryption_key
ABCF70C37D1A79A01712038122D1532DF20DF72A
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install_name
Client.exe
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log_directory
Error Logs
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reconnect_delay
3000
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startup_key
WOS64
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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