Behavioral task
behavioral1
Sample
korra rat v1.exe
Resource
win7-20240903-en
General
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Target
korra rat v1.exe
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Size
3.1MB
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MD5
39f9b1f1b8205144e7b2342448a6c238
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SHA1
4a2a2a6ae2739ed79142c9c630b222297382fb9b
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SHA256
26e0f26e24cd923f03ef3dd068d035700a0dc4fb9c6d10e10394788607fc5635
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SHA512
3a5163d1f098c46a85404049c1ea95d8f141b96626e6d7b8bd4f69eed2f870492c92c475646c7b1c848366827cfd762b1ae5de414b3994ee4244fc385d871ece
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SSDEEP
49152:PvbI22SsaNYfdPBldt698dBcjHml6bP1JJLoGdxTHHB72eh2NT:Pvk22SsaNYfdPBldt6+dBcjHfbp
Malware Config
Extracted
quasar
1.4.1
Office04
149.40.58.150:4782
6e43e699-4911-4301-bb93-6781756e94c4
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encryption_key
6510BB4771E06576C2C36CF2CD67EF98594BBAFF
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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 korra rat v1.exe
Files
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korra rat v1.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