General
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Target
Client-Built.exe
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Size
3.1MB
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MD5
6e3c5d945a68ed13fb7b9987971acb26
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SHA1
6f068d129146e1d05895054474a4fe1c785ff152
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SHA256
28cfa18116077b2c03e2c7fa3836f975132cd45acf3a63779f915de4386ea58b
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SHA512
1bb29d891a5d40f4aa9b25ca59e80979b4bb4046d1785e9452a9fbeab6d1044fa7f54ea46910c3cb3c2cc1bbc5f9d1b171b235bbb6367049dd957f3b3f258139
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SSDEEP
49152:Dvft62XlaSFNWPjljiFa2RoUYCyWel1loGdTTHHB72eh2NT:Dv162XlaSFNWPjljiFXRoUYCyWelj
Malware Config
Extracted
quasar
1.4.2
Testing
127.0.0.1:4782
da53512e-6c73-406a-b1ee-fcfefff35b99
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encryption_key
4B317113B678FE9A27AFEB228E60516202859C8D
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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