General
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Target
cwel.exe
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Size
3.1MB
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MD5
f57c5f27d07315ed82dbb08b6e652c11
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SHA1
0c2411ec67b8f5457a36615f452091fa9fde834a
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SHA256
89fbe8fb43f3984f60bfedeae4cace3b4789351ab26ebbfba4c86a2b846ef2e9
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SHA512
a776ff65e4091531aa40534b0ab048be3552c45c1b7e684bcf8cbbd3c25df48e1c62ae50c91027db9a7e54dc9d87c084467f8feb84054ddeac18edb72bea2282
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SSDEEP
49152:DvLlL26AaNeWgPhlmVqvMQ7XSKXtmbmzJxoGdrXBLTHHB72eh2NT:DvxL26AaNeWgPhlmVqkQ7XSKXtmM
Malware Config
Extracted
quasar
1.4.1
Office04
pringelsy-48617.portmap.host:48617
47a4883d-5fa4-4ba1-82ac-9e7264eb80ac
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encryption_key
49AD8030FAA6FACCE440328D691DA1A8FD6FDA5C
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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 cwel.exe
Files
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cwel.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