General
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Target
Client-built.exe
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Size
3.1MB
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MD5
6008a46eb8c69c7d6f65886d3e67c93d
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SHA1
eaea51712b1462431f0afa92f18484cd2e5fc94c
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SHA256
3dfe010c8df45dbddb6707085c2d3c686288312bae8015a3a639a505cd6d7ba6
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SHA512
37f8840dc4790394a7aa02c2ecdd5caa097d653133850d3cae89b50020f861ec9866b840d3d8696cd6b1be6797e67de533579f86c037f0bdc588c53da8d7f5d9
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SSDEEP
49152:PvnI22SsaNYfdPBldt698dBcjH18cmbmz1qoGddOTHHB72eh2NT:PvI22SsaNYfdPBldt6+dBcjHucmrt
Malware Config
Extracted
quasar
1.4.1
zzzz
8.tcp.ngrok.io:13597
116e2822-047d-4b5c-ad10-563148a1a28e
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encryption_key
C366BC97216329D1909524412E3ECB1EBC575D07
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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