General
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Target
Client-built.exe
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Size
3.1MB
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MD5
1bca12f842d32d0cb1411dd70cb37d74
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SHA1
ca8dff22c3df385aeb69207dbee621294ce64465
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SHA256
a99195bc5021cb62d6946d51f478be9e4e32c40da5be7f706757b36ac9fc2e26
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SHA512
0ff6395b2c2c09119304cd28742167a424a867f9efb97ee9f7608c78cb95d3114206bf8aa6a96004817219d08d1b770d7e0a90ce9fd818aed717c660057814ef
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SSDEEP
49152:SvQt62XlaSFNWPjljiFa2RoUYIPaXm0mzXsoGdQTHHB72eh2NT:Svc62XlaSFNWPjljiFXRoUYIiXmW
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.30:4782
527d6b5a-c716-4500-9e84-5840c7e340a4
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encryption_key
E54BE336D58046FD53BA6384AD78D66E8B2B987A
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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
Discord
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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