General
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Target
Client-builttvkm.exe
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Size
3.1MB
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MD5
bb9deb0d12f32919f0a695b1edf8ab20
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SHA1
94ebd418ab45e19116b073c51e89a2399614d5e8
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SHA256
9a91475ffd49c547174f5656fb9731c2de2ff3254b58a63031fc91cc684c4d70
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SHA512
582e0e0344d472878a79e3f4b982d9a41795b009c55059f082ee8085bb18689454d37e52bff250c001c7be04eb10287088372d64b3fa42048e8cfa3872c4768e
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SSDEEP
49152:3vyI22SsaNYfdPBldt698dBcjHEHR39o3oGdRTHHB72eh2NT:3vf22SsaNYfdPBldt6+dBcjHcR39U
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.5:4782
f9c55c52-d182-4e6c-9642-b038ea9c4ee1
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encryption_key
A98D5D4A1C020D24ED471A8CC2D89A28352EB296
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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
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Client-builttvkm.exe
Files
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Client-builttvkm.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