General
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Target
Client-built.exe
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Size
3.1MB
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MD5
48be60b3ee1e00cc82390f9b15a557b0
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SHA1
3a85f43f73a6559d93f8510ddd322fd25ab6478f
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SHA256
0717e7dba5d6758431ecfa178c4e5c850340dc2a64009572252bb1639a2be16a
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SHA512
9367f3dde580ec19c8c6ef1c83bc7119160d70bca7cae04e0e2fb3242083797306ecdfbda4014782ffe04a23cdd85830fc7a49ff4eb55087e9ee1f096967a4ef
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SSDEEP
49152:HvTI22SsaNYfdPBldt698dBcjHj3v7Bx4OoGdLTHHB72eh2NT:Hvs22SsaNYfdPBldt6+dBcjH7vz
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.56.1:4782
9f808638-1d71-4cd8-bcba-dc4258c5567c
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encryption_key
50594C0487E73C95F03F5F7C150B052B4C74F9BE
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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