General
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Target
Client-built.exe
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Size
3.1MB
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MD5
4e657c4c49a04f80014300bd5602f531
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SHA1
951608afa96e72732ebda92357f359f1a1793516
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SHA256
91f3543e226fa4efa50011f09441cc3d6d49f14a77b38846ba80af8396e4b268
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SHA512
201f854e762125ece85f41bafa38ad27d6e961d2a00504698361c12546275fe4fef25ddfc98cd56bf46c7488ee52850b1790ee5e5fa41cdebbd31756b5411fc3
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SSDEEP
49152:HvbI22SsaNYfdPBldt698dBcjHInRJ6FbR3LoGdcTHHB72eh2NT:Hvk22SsaNYfdPBldt6+dBcjHInRJ6X
Malware Config
Extracted
quasar
1.4.1
Office04
Waix-40247.portmap.host:40247
9d84e220-c4b7-4f5c-b179-163c03154a8f
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encryption_key
B963B2000CDCB4E83B2966F1E1C703720463EE18
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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