Behavioral task
behavioral1
Sample
3ec670197c9d917b0f258ea9f093289ee2e4b829451b8c9aa8f1d2e7170a2d8b.exe
Resource
win7-20240903-en
General
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Target
3ec670197c9d917b0f258ea9f093289ee2e4b829451b8c9aa8f1d2e7170a2d8b.exe
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Size
3.1MB
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MD5
e69d5c216f6cf59c3b71b0bf3444803e
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SHA1
e18de0fa930ed0ad786bd3e22c699762d93d3e95
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SHA256
3ec670197c9d917b0f258ea9f093289ee2e4b829451b8c9aa8f1d2e7170a2d8b
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SHA512
92ee6e7c5145b4281aaad5bdbe8f7a90c71ac247918112fbdb7f92256e9c562cdeeb15bb4716ee0dec168db96c1d7631023181ab7e932196effc653b8cb00527
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SSDEEP
49152:nvkI22SsaNYfdPBldt698dBcjHfqDybRcboGdj/mTHHB72eh2NT:nvJ22SsaNYfdPBldt6+dBcjHfqDV
Malware Config
Extracted
quasar
1.4.1
客户
121.36.102.48:1111
043c1c13-ad0b-4e54-a900-6308db7e18c0
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encryption_key
CBC848F0E8EC6B1B06081D6FFA1D98A8EAB2442E
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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
Microsofl
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 3ec670197c9d917b0f258ea9f093289ee2e4b829451b8c9aa8f1d2e7170a2d8b.exe
Files
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3ec670197c9d917b0f258ea9f093289ee2e4b829451b8c9aa8f1d2e7170a2d8b.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