General
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Target
Client-built.exe
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Size
3.1MB
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MD5
8024af6152ce6dc1c65c57b9e2c88017
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SHA1
b3683f398f36b35d4e1ed5af789521a1aa07c11c
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SHA256
118be55a76743e05e33251b51cad97c46de6ba3fe7090ad65dc3a5400f45979d
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SHA512
e28089ca4cec5f79f3ce7770e424535e891a4eb1cb0b8de204083d4c7b4791be4e33b55b746fd22fd7d1597ebb2f90e5fb75c91641aebe5fe2f352afb9080791
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SSDEEP
49152:KvmI22SsaNYfdPBldt698dBcjHIGxNESERk/iFLoGdAhdaTHHB72eh2NT:Kvr22SsaNYfdPBldt6+dBcjHBxEd+
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.178.197:4782
05067353-87c9-4866-b3d2-14f9329a849b
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encryption_key
837E13811BD83BAE347955143D2609140A707338
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
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